Ответ:

i___(not clean)

they___(not start)

i___(not do)

he___(not win)

my brother and i___(not see)

it 's my birthday party today. i___(not invite)

I clean"t

They starten"t

I don"t

He win"t

my brother and seen"t

it 's my birthday party today. iinviten"t

либо добавляем окончание n"t либо ed

Ответ:

I haven't cleaned

They haven't started

I haven't gone

He hasn't won

My brother and l haven't seen

...... I haven't invited