PAST SIMPLE VS PAST PERFECT

To form the perfect present, the auxiliary verb "to have" is used in the present and the past participle of the verb.

For regular verbs, past participle is the simple form of the past.

Affirmative: Subject+have/has+past participle.

Negative: Subject+have/has+not+past participle.

Questions: Have/Has+subject+past participle..?

Not finished: I have played tennis for ten years.

Experience in general: I have been to Paris.

Explanation why something is now: Peter is happy. He has passed his driving test.

To combine the simple present we use the infinitive for subjects: I, you, we, they.

For third people: he, she and it we add a "-s" at the end of the verb.

Affirmative: Subject+Past forms

Negative: Subject+did+not+infinitive (without to)

Questions: Did+subject+infinitive (without to)

Finished: I played tennis for ten years.

One specific event: I bought this bag in Paris. It´s very cheap there.

Time is given: She came home at six o´clock.