we will sing; we’ll singFirst-person plural future form of спеть, meaning “we will sing.” It can also function as a suggestion or assurance depending on context, but “let’s sing” is more commonly expressed with давайте споём.
RU: Поскольку у тебя сегодня день рождения, мы споём тебе песню.
EN: Since it’s your birthday today, we’ll sing you a song.