81.
She says she's already paid me back, but I can't remember, so I 'll have to take her word.

82.
If you had attended the meeting, you would have benefited a great deal.

84.
If he would have tried he would have succeeded.

85.
It will be no good trying to find an excuse next time.

86.
Please remind me of posting these letters to my relatives.

87.
Not a word they spoke to the unfortunate wife about it.

88.
Not long back, in Japan, a mysterious nerve gas affected a large number of people.

89.
We had nothing to eat since 8'o clock, this morning.