irregular verbs

Question

yo ___ algo extraño por la noche

Oí

oyí

oi

oyi

Answer 1

Yo oí (with an accent) is the right answer. The verb "oir" es irregular, and that is the conjugated form for the past tense in the 1st person singular.

Answer 2

The correct answer is oí. Past tense (simple past- pretérito perfecto simple). An action that finished in the past.

Answer 3

The answer is Oi. the first one. Past tense, for I heard.