Do not use the infinitive with certain words which require a preposition followed by a gerund or an –ing form.
Examples of such words and the preposition that usually go with them are given below:
He is bent on attending the meeting. (NOT He is bent on to attend the meeting.) (NOT He is bent to attend the meeting.)
She is desirous of finding a good job. (NOT She is desirous to find a good job.)
He is capable of doing it.
I always knew that we had no chance of succeeding.
We must aim at reaching the top of the mountain.
Will you assist me in cleaning the windows?
I am confident of winning.
He is addicted to gambling.
She is fond of reading detective novels.
She prevented me from entering her house.
She insisted on coming with me.
He is an expert in making clay idols.
I intent on visiting my old friends during the Christmas holidays.
One must refrain from hurting other people’s sentiments.
Excuse somebody for
Excuse me for being late.
She succeeded in getting the first prize.