Question about passive and past forms of infinitives and gerunds.
Hello grammar gurus, here is two examples,
a) and b).
Both are correct answers, I just cannot remmember why are possible b) variants.
Could you please remind/explain me or pinpoint where to look?

1.Mrs. Chu mentioned _______ an argument with her co-worker. She was really angry.

a)having had
b)having

2.That letter was supposed _______ by last Friday. Please mark it "urgent" and pay for overnight delivery.

a)to have been sent
b)to be sent

1.a)past gerund
2.a)past passive infinitive

1.b) -?
2.b)-?

Thanks in advance.UPDATE:

Actually I knew the asnwer, but I realized it only this morning :0, maybe I was looking something deep explanation, whatever this's stupid question.

Thanks Jura.

Question

Question about passive and past forms of infinitives and gerunds.
Hello grammar gurus, here is two examples, 
a) and b). 
Both are correct answers, I just cannot remmember why are possible b) variants. 
Could you please remind/explain me or pinpoint where to look?

1.Mrs. Chu mentioned _______ an argument with her co-worker. She was really angry.

a)having had
b)having

2.That letter was supposed _______ by last Friday. Please mark it "urgent" and pay for overnight delivery.

a)to have been sent
b)to be sent

1.a)past gerund
2.a)past passive infinitive

1.b) -?
2.b)-?

Thanks in advance.UPDATE:

Actually I knew the asnwer, but I realized it only this morning :0, maybe I was looking something deep explanation, whatever this's stupid question.

Thanks Jura.

Answer

Hi, this is a very useful site for grammar.
www.better-english.com/grammar.htm

Answer

i dont know wether the grammar its usefull or not, but i improved my english only by practising, cause i studied in the school 9 years eanglish grammar but i couldnt make up a single sentence in english, i still remember the grammar i studied but  i cant say that its helping me me....

Answers · 2

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