Grammar and UsageGrammar and UsageTom seemed excited when he heard the good news yesterday.My mother didn’t allow him to go out, for he had lots of homework to do.In order to keep healthy, Jack takes exercise every morning.Lead-inTo-infinitiveFunctionsSample SentencesTo find a best friend is difficult. It is difficult to find a best friend.I need to sleep for eight hours every day.Please remember to write to me. SubjectObjectFunctionsSample SentencesI ask him to come over.He ordered Tom to leave at once.I have an important meeting to attend.I have two letters to write.AttributeObjectComplementFunctionsSample SentencesHis intention was to cheer me up.My job is to deliver letters.My dad arranged some swimming lessons to surprise me.He worked hard to provide for his big family.PredicativeAdverbialThe to-infinitive often follows some verbs as the object of a sentence. Tipswant, hope, like, begin, start, try, forget, agree, learn, refuse, dare, decide, determine, fail, manage, offer, prepare, prefer, mean etc.Active VoicePassive VoiceBasicformto doto be donePerfect formto have doneto have been doneContinuous formto be doingOther forms of to-infinitivePractice我很高兴见到你。据说 Tom 写过一本科幻小说。 老师进来时 Tom 刚巧在大声说话。I am glad to meet you.Tom is said to have written a science fiction story.Tom happened to be talking loudly when the teacher came in.Bare InfinitiveBare InfinitiveWe use the bare infinitive after ：let, make and sometimes have eg. I let her borrow my book.She made me promise to write every day.The teacher often has his students read aloud in class. (verbs of perception) feel, hear, see, observe, notice and watchI often see them play basketball together.I heard him sing in the next room yeste...
