The past simple is formed by adding 'ed' to regular verbs. Verbs with irregular pasts have to be learned sepatately e.g. go - went, eat - ate etc.
The present simple is formed with the present form of the verb, which looks very like the infinitive but takes an 's' in the third person singular - I live, he lives.
The future simple is (I suppose) formed with 'will + infinitive' - I will go, he will eat.
The progressive tenses are formed with 'be' (in past, present or future) + the -ing form of the verb - He is playing, they were writing, I'll be working.
The perfect tenses are formed with 'have' + participle. Past - I had done. Present - I have done. Future - I will have done.
The perfect progressive tenses are formed with 'have / had / will have + been + ing form. Past - I had been doing. Present - I have been doing. Future - I will have been doing.
Why don't you look at your sentences again and try to work out what tense they are in? Then post it and someone here will look at it for you.
- For Teachers