Review of English tenses

Simple Present
Affirmative	She drinks.
Negative	She does not drink.
Interrogative	Does she drink?
Form	I, you we they play | he, she, it plays
Uses	action in the present taking place once, never or several times facts actions taking place one after another action set by a timetable or schedule

Present Progressive
Affirmative	He is reading.
Negative	He is not reading.
Interrogative	Is he reading?
Form	To be (in the simple present) + verb + ing
Uses	action taking place at the moment of speaking action arranged for the future

Simple Past
Affirmative	I cried.
Negative	I did not cry
Interrogative	Did I cry?
Form	Regular verbs: Verb + ed | Irregular verbs: forms differ and should be learned by heart. This is a list of irregular verbs
Uses	action in the past taking place once, never or several times actions taking place one after another

Past Progressive
Affirmative	He was driving.
Negative	He was not driving.
Interrogative	Was he driving?
Form	to be (in the simple past) + verb + ing
Uses	action going on at a certain time in the past actions taking place at the same time action in the past that is interrupted by another action

Present Perfect Simple
Affirmative	They have slept.
Negative	They have not slept.
Interrogative	Have they slept?
Form	Have / has + past participle (past participle of regular verbs: verb + ed | Past participle of irregular verbs: forms differ and should be learned by heart. This is a list of irregular verbs)
Uses	emphasis is on the result (not the duration) action that started in the past & is still going on action that stopped recently finished action that has an influence on the present

Present Perfect Progressive
Affirmative	He has been thinking.
Negative	He has not been thinking.
Interrogative	Has he been thinking?
Form	have or has + been + verb + ing
Uses	putting emphasis on the course or duration (not the result) action that recently stopped or is still going on finished action that influenced the present