Befejezett jelen vagy múlt idő?

has worked is working work was working None

never met have never met were never meeting are never meeting None

is being has been was being was None

grew has grown grows was growing None

was inventing invented has invented invents None

goes was going went has gone None

went go have gone are going None

don't 'm not wasn't haven't been None

has _______ written was ______ writing does ______ write did ______ write None

have forgotten forgot forget forgetting None