Thursday, October 11, 2012


English Tense System

In some languages, verb tenses are not very important or do not even exist. In English, the concept of tense is very important.
In this lesson we look at the idea behind tense, how to avoid confusing tense with time, and the structure of the basic tenses, with examples using a regular verb, an irregular verb and the verb be.              

What is Tense?

tense (noun): a form of a verb used to indicate the time, and sometimes the continuation or completeness, of an action in relation to the time of speaking. (From Latin tempus = time).
Tense is a method that we use in English to refer to time - past, present and future. Many languages use tenses to talk about time. Other languages have no tenses, but of course they can still talk about time, using different methods.
So, we talk about time in English with tenses. But, and this is a very big but:
  • we can also talk about time without using tenses (for example, going to is a special construction to talk about the future, it is not a tense)
  • one tense does not always talk about one time (see Tense & Time for more about this)
Here are some of the terms used in discussing verbs and tenses.

Mood

indicative mood expresses a simple statement of fact, which can be positive (affirmative) or negative
  • like coffee.
  • do not like coffee.
interrogative mood expresses a question
  • Why do you like coffee?
imperative mood expresses a command
  • Sit down!
subjunctive mood expresses what is imagined or wished or possible
  • The President ordered that he attend the meeting.

Voice

Voice shows the relationship of the subject to the action. In the active voice, the subject does the action (cats eat mice). In the passive voice, the subject receives the action (mice are eaten by cats). Among other things, we can use voice to help us change the focus of attention.

Aspect

Aspect expresses a feature of the action related to time, such as completion or duration. Present simple and past simple tenses have no aspect, but if we wish we can stress with other tenses that:
  • the action or state referred to by the verb is completed (and often still relevant), for example:
    have emailed the report to Jane. (so now she has the report)
    (This is called perfective aspect, using perfect tenses.)
  • the action or state referred to by the verb is in progress or continuing (that is, uncompleted), for example:
    We are eating.
    (This is called progressive aspect, using progressive [continuous] tenses.)
Tense and Time
It is important not to confuse the name of a verb tense with the way we use it to talk about time.
For example, a present tense does not always refer to present time:
  • I hope it rains tomorrow.
    "rains" is present simple, but it refers here to future time (tomorrow)
Or a past tense does not always refer to past time:
  • If I had some money now, I could buy it.
    "had" is past simple but it refers here to present time (now)
The following examples show how different tenses can be used to talk about different times.
TENSETIME
pastpresentfuture
Present Simplewant a coffee.leave tomorrow
Shelikescoffee.
Present Continuousam having dinner.am taking my exam next month.
TheyarelivinginLondon.
Present Perfect Simplehave seen ET.have finished.
Present Perfect Continuoushave been playingtennis.
We have been working for four hours.
Past Simplefinished one hour ago.If she loved you now, she would marry you.If you came tomorrow, you would see her.
Past Continuouswas working at 2am this morning.
Past Perfect Simplehad not eaten for 24 hours.
Past Perfect ContinuousWe had been workingfor 3 hours.If I had been workingnow, I would have missed you.If I had been workingtomorrow, I could not have agreed.
Future SimpleHold on. I'll do it now.I'll see you tomorrow.
Future Continuouswill be working at 9pm tonight.
Future Perfect Simplewill have finished by 9pm tonight.
We will have been married for ten years next month.
Future Perfect ContinuousThey may be tired when you arrive because they will have been working.
In 30 minutes, we will have been working for four hours.

            

Basic Tenses

For past and present, there are 2 simple tenses + 6 complex tenses (using auxiliary verbs). To these, we can add 4 "modal tenses" for the future (using modal auxiliary verbs will/shall). This makes a total of 12 tenses in the active voice. Another 12 tenses are available in the passive voice. So now we have 24 tenses.
24 Tensespastpresentfuture*
ACTIVEsimple tensespastpresentfuture
complex tenses
formed with
auxiliary verbs
past perfectpresent perfectfuture perfect
past continuouspresent continuousfuture continuous
past perfect continuouspresent perfect continuousfuture perfect continuous
PASSIVEpastpresentfuture
past perfectpresent perfectfuture perfect
past continuouspresent continuousfuture continuous
past perfect continuouspresent perfect continuousfuture perfect continuou
Some grammar books use the word progressive instead of continuous. They are exactly the same.
The use of tenses in English may be quite complicated, but the structure of English tenses is actually very simple. The basic structure for a positive sentence is:
subject + auxiliary verb + main verb
An auxiliary verb is used in all tenses. (In the simple present and simple past tenses, the auxiliary verb is usually suppressed for the affirmative, but it does exist for intensification.) The following table shows the 12 tenses for the verb to work in the active voice.
structurepastpresentfuture*
auxiliarymain verb
simplenormalI workedI workI will work
intensivedobaseI did workI do work
perfecthavepast participleI had workedI have workedI will have worked
continuousbepresent participle -ingI was workingI am workingI will be working
continuous perfecthave beenpresent participle -ingI had been workingI have been workingI will have been working
* Technically, there are no future tenses in English. The word will is a modal auxiliary verb and future tenses are sometimes called "modal tenses". The examples are included here for convenience and comparison.
         

Basic Tenses: Regular Verb

This page shows the basic tenses with the regular verb work. It includes the affirmative or positive form (+), the negative form (-) and the interrogative or question form (?).
The basic structure is:
positive:+subject + auxiliary verb + main verb
negative:-subject + auxiliary verb + not + main verb
question:?auxiliary verb + subject + main verb
These are the forms of the main verb that we use to construct the tenses:
base verbpastpast participlepresent participle -ing
workworkedworkedworking

pastpresentfuture
SIMPLE
do + base verb
(except future:
will + base verb)
+I did work
I worked
I do work
I work
I will work
-I did not workI do not workI will not work
?Did I work?Do I work?Will I work?
SIMPLE PERFECT
have + past participle
+I had workedI have workedI will have worked
-I had not workedI have not workedI will not have worked
?Had I worked?Have I worked?Will I have worked?
CONTINUOUS
be + ing
+I was workingI am workingI will be working
-I was not workingI am not workingI will not be working
?Was I working?Am I working?Will I be working?
CONTINUOUS PERFECT
have been + ing
+I had been workingI have been workingI will have been working
-I had not beenworkingI have not beenworkingI will not have beenworking
?Had I been working?Have I been working?Will I have been working?
            

Irregular Verbs List

This is a list of some irregular verbs in English. Of course, there are many others, but these are the more common irregular verbs.
V1
Base Form
V2
Past Simple
V3
Past Participle
awakeawokeawoken
bewas, werebeen
beatbeatbeaten
becomebecamebecome
beginbeganbegun
bendbentbent
betbetbet
bidbidbid
bitebitbitten
blowblewblown
breakbrokebroken
bringbroughtbrought
broadcastbroadcastbroadcast
buildbuiltbuilt
burnburned/burntburned/burnt
buyboughtbought
catchcaughtcaught
choosechosechosen
comecamecome
costcostcost
cutcutcut
digdugdug
dodiddone
drawdrewdrawn
dreamdreamed/dreamtdreamed/dreamt
drivedrovedriven
drinkdrankdrunk
eatateeaten
fallfellfallen
feelfeltfelt
fightfoughtfought
findfoundfound
flyflewflown
forgetforgotforgotten
forgiveforgaveforgiven
freezefrozefrozen
getgotgot (sometimes gotten)
givegavegiven
gowentgone
growgrewgrown
hanghunghung
havehadhad
hearheardheard
hidehidhidden
hithithit
holdheldheld
hurthurthurt
keepkeptkept
knowknewknown
laylaidlaid
leadledled
learnlearned/learntlearned/learnt
leaveleftleft
lendlentlent
letletlet
lielaylain
loselostlost
makemademade
meanmeantmeant
meetmetmet
paypaidpaid
putputput
readreadread
rideroderidden
ringrangrung
riseroserisen
runranrun
saysaidsaid
seesawseen
sellsoldsold
sendsentsent
showshowedshowed/shown
shutshutshut
singsangsung
sitsatsat
sleepsleptslept
speakspokespoken
spendspentspent
standstoodstood
swimswamswum
taketooktaken
teachtaughttaught
teartoretorn
telltoldtold
thinkthoughtthought
throwthrewthrown
understandunderstoodunderstood
wakewokewoken
wearworeworn
winwonwon
writewrotewritten
          

Basic Tenses: Be

This page shows the basic tenses with the verb be. It includes the affirmative or positive form (+), the negative form (-) and the interrogative or question form (?).
The basic structure is:
positive (+):subject + auxiliary verb + main verb
negative (-):subject + auxiliary verb + not + main verb
question (?):auxiliary verb + subject + main verb
But for simple past and simple present tenses, the structure is not the same. In fact, it's even easier. There is no auxiliary verb. Here is the structure:
positive (+):subject + main verb
negative (-):subject + main verb + not
question (?):main verb + subject
These are the forms of the main verb be that we use to construct the tenses:
basepast simplepast participlepresent participlepresent simple
bewas, werebeenbeingam, are, is

pastpresentfuture
SIMPLE
present simple or past simple
(except future: will + be)
+wasamI will be
-was notam notI will not be
?Was I?Am I?Will I be?
SIMPLE PERFECT
have + been
+I had beenI have beenI will have been
-I had not beenI have not beenI will not have been
?Had I been?Have I been?Will I have been?
CONTINUOUS
be + being
+I was beingI am beingI will be being
-I was not beingI am not beingI will not be being
?Was I being?Am I being?Will I be being?
CONTINUOUS PERFECT
have been + being
+I had been beingI have been beingI will have been being
-I had not beenbeingI have not beenbeingI will not have beenbeing
?Had I been being?Have I been being?Will I have been being?
In the following table, we see be conjugated for 12 basic tenses.
SIMPLEpastpresentfuture
singularIwasamwill be
youwerearewill be
he/she/itwasiswill be
pluralwewerearewill be
youwerearewill be
theywerearewill be
PERFECTpastpresentfuture
singularIhad beenhave beenwill have been
youhad beenhave beenwill have been
he/she/ithad beenhas beenwill have been
pluralwehad beenhave beenwill have been
youhad beenhave beenwill have been
theyhad beenhave beenwill have been
CONTINUOUSpastpresentfuture
singularIwas beingam beingwill be being
youwere beingare beingwill be being
he/she/itwas beingis beingwill be being
pluralwewere beingare beingwill be being
youwere beingare beingwill be being
theywere beingare beingwill be being
CONTINUOUS PERFECTpastpresentfuture
singularIhad been beinghave been beingwill have been being
youhad been beinghave been beingwill have been being
he/she/ithad been beinghas been beingwill have been being
pluralwehad been beinghave been beingwill have been being
youhad been beinghave been beingwill have been being
theyhad been beinghave been beingwill have been being

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