eu assistirei

will help, will assist, will watch, will attend

→ assistir
assist to watch + ir Infinitive (third conjugation) + ei 1st-person singular future
verb · 1st-person singular, future tense Rare #42,190
will help, will assist In this sense, assistir can take a direct object without a preposition.
PO: Assistirei meu amigo quando ele precisar.
EN: I will help my friend when he needs it.
will watch, will attend For watching or attending something, assistir is usually followed by a.
PO: Assistirei ao filme amanhã.
EN: I will watch the movie tomorrow.
Conjugation of assistir
Indicative future
SingularPlural
First assistirei —

Não te assistirei.

I won't assist you.

Eu provavelmente não assistirei à TV esta noite.

I probably won't watch TV tonight.

Não assistirei vocês.

I won't attend to you.

Assistirei a ele.

I will watch it.