Befejezett jelen vagy múlt idő?

is giving gives gave has given None

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

went has gone was going goes None

invented was inventing has invented invents None

grows was growing grew has grown None

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

is being was being was has been None

forget have forgotten forgetting forgot None

have you been were you born None

have studied 'm studying study studied None