Questions & Answers about Ostajem ovde zauvek.
Because Serbian often drops subject pronouns when they are already clear from the verb ending.
Ostajem ends in -m, which tells you the subject is I. So Ostajem ovde zauvek is perfectly complete without ja.
You can add ja for emphasis or contrast:
- Ja ostajem ovde zauvek. = I’m staying here forever.
That can sound more emphatic, as if contrasting with someone else.
The base form is ostajati, which is an imperfective verb.
So:
- ostajati = to stay, to remain
- ostajem = I stay / I am staying / I’m remaining
In this sentence, ostajem is 1st person singular present tense.
Because ostajem and ostanem come from different aspects:
- ostajati → imperfective
- ostati → perfective
Ostajem is the natural choice when you describe an ongoing state or a decision that is in effect now.
Ostanem is the present form of the perfective verb ostati, but perfective present forms usually do work like normal present tense in independent statements. So is not the normal way to say this.