Я успел сделать домашнее задание вечером.

I managed to do the homework in the evening.

Breakdown of Я успел сделать домашнее задание вечером.

• я: I
• вечером: in the evening
• задание: the assignment
• домашний: home

Questions & Answers about Я успел сделать домашнее задание вечером.

What is the exact meaning and nuance of успел in this sentence?

Успел is the past tense, masculine, singular form of успеть, a perfective verb that means:

• to manage (to do something in time)
• to have enough time (to complete something)
• to be in time / not be late (to do something)

So Я успел сделать домашнее задание вечером means not just “I did my homework in the evening”, but specifically “I *managed to do my homework in the evening (before some deadline / before it was too late).”*

There is an implied time limit, pressure, or risk of not finishing, and the sentence says you succeeded within that time.

Why is it успел and not something else? What if a woman is speaking?

In Russian, past tense verbs agree with the gender and number of the subject.

The infinitive is успеть. Its past tense forms are:

• я / он успел – masculine singular
• я / она успела – feminine singular
• оно успело – neuter singular
• мы / вы / они успели – plural (any gender mix)

So:

• A man would say: Я успел сделать домашнее задание вечером.
• A woman would say: Я успела сделать домашнее задание вечером.

The rest of the sentence stays the same; only the verb ending changes.