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Tutorial 3: English Tenses

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The following table shows the positive, negative and interrogative forms of all the basic tenses in English with a brief description of the principle usage and signal words.

One sentence is put into different tenses. You can see how the meaning changes.

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Tense Affirmative/Negative/Question Use Signal Words 
Simple present A: He speaks.N- He does not speak.
Q- Does he speak? 
action in the present taking place oncefactsactions taking place one after another Always, every …, never, normally, often, seldom, sometimes,and usually. 
Present Progressive  A: He is speaking.
N: He is not speaking.
Q: Is he speaking?
action taking place in the moment of speakingaction arranged for the future at the moment,just, just now,

now, right now

Simple Past  A: He spoke.N: He did not speak.
Q: Did he speak? 
action in the past taking place once, actions taking place one after another yesterday,2 minutes ago, in 1990, the other day, last Friday 
Past Progressive  A: He was speaking.
N: He was not speaking.
Q: Was he speaking? 
action going on at a certain time in the pastaction in the past that is interrupted by another action when, while,as long as 
Present Simple Perfect  A: He has spoken.
N: He has not spoken.Q: Has he spoken? 
putting emphasis on the resultaction that is still going on action that has an influence on the present  already, ever, just, never,

not yet, so far, till now 

Present Perfect Progressive  A: He has been      speaking.
N: He has not been speaking.
Q: Has he been speaking?
putting emphasis on the course or duration (not the result) action that influenced the present  all day, for 4 years,

 since 1993, how long?, the whole week 

Past Perfect Simple  A: He had spoken.
N: He had not spoken.
Q: Had he spoken? 
action taking place before a certain time in the pastputting emphasis only on the fact (not the duration) already, just,never, not yet,

once, until that day 

Past Perfect Progressive  A: He had been speaking.
N: He had not been speaking.
Q: Had he been speaking?
action taking place before a certain time in the pastputting emphasis on the duration or course of an action for, since,the whole day,

 all day 

will-future  A: He will speak.
N: He will not speak.
Q: Will he speak? 
spontaneous decision assumption with regard to the future  in a year, next, tomorrow

assumption: I think, probably

going to-future  A: He is going to speak.
N: He is not going to speak.
Q: Is he going to speak?
decision made for the futureconclusion with regard to the future  in one year, next week, tomorrow
Future Progressive  A: He will be speaking.
N: He will not be speaking.
Q: Will he be speaking? 
action that is going on at a certain time in the futureaction that is sure to happen in the near future in one year, next week, tomorrow 
Future Perfect  A: He will have spoken.
N: He will not have spoken.
Q: Will he have spoken?
action that will be finished at a certain time in the future  by Monday, in a week 
Conditional Simple  A: He would speak.
N: He would not speak.
Q: Would he speak?
action that might take place if sentencestype II
(If I were you, I would go home.)
Conditional Progressive  A: He would be speaking.
N: He would not be speaking.
Q: Would he be speaking?
action that might take placeputting emphasis on the course / duration of the action   
Conditional Perfect  A: He would have spoken.
N: He would not have spoken.
Q: Would he have spoken?
action that might have taken place in the past  if sentences type III
(If I had seen that, I would have helped.) 
Conditional Perfect Progressive A: He would have been speaking.
N: He would not have been speaking.
Q: Would he have been speaking?
action that might have taken place in past               puts emphasis on course / duration of the action   
Cited from: http://www.ego4u.com/en/cram-up/grammar/tensesPicture6

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