We can use the to-infinitive
after too and enough.
We can combine two sentences into sentence using too+ adjective/adverb + to-infinitive.
Anil
is very weak. He cannot lift the weight.
Anil
is tooweak to lift
the weight.
My
sister is very young. She cannot go to school.
My
sister is too young to goto school.
The
coffee is very hot. We cannot drink it.
The
coffee istoo hot to drink.
Note: that the to-infinitive
in the last example (“to drink”), though active in forms, is passive in
meaning. Here the action expressed by to-infinitive
is not performed by the subject of the main verb .In such cases,for noun/pronoun can be placed before the
to-infinitive:
The
coffee is too hot (for us) to drink.
We can combine two sentence into one sentence using
adjective/adverb + enough+ to-infinitive. Enough has a positive sense, while
too has a negative sense.
Satish
is very strong. He can lift the weight.
Satish
is strong enough to lift the weight.
You
are quite old. You ought to know better.
You
are old enough to know better.
The
bag is quite light. I can carry it.
The
bag is light enough to carry.
The to-infinitive
in the last example is passive in meaning. For
+ noun/pronoun may be introduced in such cases.
The
bag is light enough (for me) to carry.