Grammatical Problems...

[hey_friends]

1)the magazine isn't worth reading.
2)it's no good trying to convince her.
3)it's no use worrying about the exam now.
4)he had no difficulty getting a place on the course.
5)It will be difficult having conceded two goals.
6)it must be terrible having to decide whether to play anelka and drogba,two up front or one up front.
7)Chong Wei had hoped to skip the tournament claiming he was mentally tired after competing in the Thomas Cup qualifiers in Vietnam, the All-England and the Swiss Open.

why reading,trying,worrying,getting,claiming and having are applied in these sentence?why don't we use original word?could someone explain to me?
very thanks

[hey_friends]

8)i'm dreadfully sorry to have to inform you that your application has been unsuccessful.

and this used original.why?

[stuartnz]

Originally Posted by hey_friends

8)i'm dreadfully sorry to have to inform you that your application has been unsuccessful.

and this used original.why?

I'm not a teacher, but here "to have to" means "be obliged to", "be compelled to", "must. So, "I am dreadfully sorry that I must inform you ..." or "I am dreadfully sorry that it is my duty (obligation) to inform you ..."

[hey_friends]

who can answer me ?

[hey_friends]

is there any teacher can answer my question??Please

[hey_friends]

can some one explain to me???

[Anglika]

Originally Posted by hey_friends

1)the magazine isn't worth reading.
2)it's no good trying to convince her.
3)it's no use worrying about the exam now.
4)he had no difficulty getting a place on the course.
5)It will be difficult having conceded two goals.
6)it must be terrible having to decide whether to play anelka and drogba,two up front or one up front.
7)Chong Wei had hoped to skip the tournament claiming he was mentally tired after competing in the Thomas Cup qualifiers in Vietnam, the All-England and the Swiss Open.

why reading,trying,worrying,getting,claiming and having are applied in these sentence?why don't we use original word?could someone explain to me?
very thanks

Because in all cases there is an indication of continung action.

[hey_friends]

1)the magazine isn't worth reading.
2)it's no good trying to convince her.
3)it's no use worrying about the exam now.
4)he had no difficulty getting a place on the course.
5)It will be difficult having conceded two goals.
6)it must be terrible having to decide whether to play anelka and drogba,two up front or one up front.
7)Chong Wei had hoped to skip the tournament claiming he was mentally tired after competing in the Thomas Cup qualifiers in Vietnam, the All-England and the Swiss Open.

so means that,i could put:
1)the magazine isn't worth to read.
2)it's no good to try to convince her.
3)it's no use to worry about the exam now.
4)he had no difficulty to get a place on the course.
5)It will be difficult to have conceded two goals.
6)it must be terrible to have to decide whether to play anelka and drogba,two up front or one up front.
7)Chong Wei had hoped to skip the tournament to claim he was mentally tired after competing in the Thomas Cup qualifiers in Vietnam, the All-England and the Swiss Open.

who can explain to me?i really don't understand.