past: I was; you were; he/she/it was present: I am; you are; he/she/it is
Have is present tense. The past tense is had.
There is a past, present, and future. There was a past; there is a present and there will be a future.
what is present past
Present - am. Past - was and were.
Past - was Present - is Future - will be
The past tense of improve is improved.
past: I did, you did, he/she/it did; present: I do, you do, he/she/it/does
Present tense - clean. Past tense - cleaned. Present tense - work. Past tense - worked. Present tense - play. Past tense - played.
Seek is present tense, and seeking is the present participle. Sought is the past tense and past participle.
The past tense of improve is "improved", and the past participle is also "improved".
Studied is the past participle of study. Studying is the present participle.