Infinitive Verbs and Nouns in English
      In this post we would learn the usage of infinitive –verb with  ‘how, what, when, where and which’.   Using one of  the interrogative adverbs or pronouns when the first verb is ‘ask, find out,  discover, decide, forget, know, learn, remember’, are invariably used. Some of  the examples are given below.   1. I could not  find out when to solve this problem.   2. The chief  guest didn’t know which prize is to be given.   3. Some of the  hostel students had learnt how to maintain the rooms in silence.   4. He decided  himself where to stay for the night.   5. I suddenly  remembered what I had to wear for the function.   6. He forgot  where to go for the meeting.   7. The little  child soon discovered how to propel the walker forward.   8. The old man  asked me how to reach the place on foot.                                  Infinitive –  noun.   ...