Напишите инфинитив глаголов : was, had, answered, studied,saw,played,worked,wrote,opened,looked,were,did,became,went,understood.

Was-be
had-has
answered-answer
studied- study
saw-see
played-play
worked-work
wrote-write
opened - open
looked- look
were- be
did- do
became-become
went-go
understood- understand    Удачи тебе!