Completar Frases Present perfectVersión en línea English por Alejandro Castro Garzón 1 stayed haven't stayed affirmative finished have last haven't interrogative gone eaten has have played negative scratched interrogative negative We only use never in sentences . We only use ever in and sentences . Yet is the word in the sentences . We only use yet in and sentences . Examples : I never in California He his head with a wall You ever to Valencia Has she ever in class ? I already my homework I beisball yet Have you an onion yet ?