"Kita tidak punya banyak waktu."
Terjemahan:We do not have much time.
Jika kata kerja tidak adalah "to be",dalam Bahasa Inggris, negasi = do+not/don't (doesn't dengan he/she/it)
keadaan = to be.
Melakukan sesuatu = to do.
If you don't already have the verb "to be" in the affirmative sentence, the negation auxiliary to add is "do" not "are". When "to be" is already in the affirmative sentence, you don't need this auxiliary "do", you simply turn "are" into the negative form.
We are nice = "to be" is in the affirmative sentence; So I don't need to add the auxiliary, and I form the negative as "we are not nice" (or aren't)
We sell things = I don't have the "to be" verb in this sentence; So I add the "do" auxiliary to have the negative form. We do not sell things (or we don't)