Nie rozumiem tych zdań:
1.It looks as if this light has been burning all night. I must have forgotten to switch it off before i went to bed last night.
Dlaczego tutaj w tym zdaniu jest went, a nie had gone?
2. I don t think we have met before . Well i saw you once at a party, but we were not introduced then.
Dlaczego were not introduced a nie did not introduced?
3. Come in now. I’ m sorry have kept you waiting so long.
Dlaczego nie keep you waiting?
4. It’s od that you mention his mame. I was just thinking about him and wondering what had become of him.
Dlaczego nie i have just wondering?
Ktoś zna odpowiedzi? będę ogromnie wdzięczna