Am is the first person singular present tense of be.
The past tense forms of be are:
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
Past - was Present - is Future - will be
Present tense: are Past tense: were
past: I did, you did, he/she/it did; present: I do, you do, he/she/it/does
present: walk past: walked present: eat past: ate present: speak past: spoke
Present: seek Past: sought Past participle: sought
Past - was and were. Present - am, is and are.
Present: study Past: studied Past participle: studied
The past of cut is cutThe past participle of cut is cutThe present participle of cut is cutting.The present continuous is formed with -- am/is/are + present participleSo for cutting present continuous is -- am cutting, is cutting, are cuttingThe past continuous is formed with -- was/were + present participleSo for cutting past continuous is -- was cutting, were cutting