Men is the plural form of man. Man/men are nouns and nouns don't show tense.
Look at these sentences:
The men eat rice everyday. -- present tense
The men ate rice yesterday. -- past tense
The men will eat rice tomorrow - future tense
Notice how the word man doesn't change it is the same in the present tense and the past tense, that's because man/men doesn't show tense.
"Has" is in present tense. The past tense is "had".
The simple present tense is do.
Have is already present tense.
It is present tense.
The word screams is present tense.
No, the word "was" is the past tense of the verb "is." The present tense equivalent of "was" is "is."
The word "you are" is used in the present tense. "You were" is used in the past tense.
the word "was" is in the past, but the present tense of "was" is are
Greet is present tense.
The word "says" is in present tense.
The present tense of the word "ground" is "ground."
The present tense of said is say.