What is wrong in these????

[abhilasha03]

Mark said the group had the intention to leave early.

He decided to begin the use of the special tools.



:-|

 

[amab]

Mark said the group had the intention to leave early.

He decided to begin the use of the special tools.



:-|

mark had said the group had the intention to leave early he had decided to begin the use of the special tools

 

[Kondorosi]

Try these:

Mark said the group had the intention of leaving early.
He decided to begin to use special tools.

 

[Frank Antonson]

If you had supplied the word "that" in your first sentence, it would have been more clear; but, actually, there is nothing grammatically or syntactically wrong with either sentence.