動詞不定式是如何否定的
以下是小編爲大家整理的動詞不定式的用法總結，希望能幫助大家更好地認識動詞不定式這個句型，提高英語水平。
不定式作否定例句|：
Tell him not to shut the window…
She pretended not to see me when I passed by. 我走過的時候，她假裝沒看見。
典型例題
1) She pretended ___ me when I passed by.
A. not to see B. not seeing C. to not see
D. having not seen
答案：A。 pretend 後應接不定式。其否定形式爲pretend not to do sth.。
2)Tell him ___ the window.
A. to shut not B. not to shut C. to not shut
D. not shut
答案：B。 tell sb to do sth 的否定形式爲tell sb not to do sth.
3)Mrs. Smith warned her daughter ___ after drinking.
A. never to drive B. to never driver
C. never driving D. never drive
答案：A。warn sb to do sth. 的否定形式爲warn sb not to do sth. 此處用的是否定詞never.
4) The boy wanted to ride his bicycle in the street，but his mother told him ____.
A. not to B. not to do C. not do it
D. do not to
答案：A。not to 爲not to do it 的省略形式。可以只用to這個詞，而不必重複整個不定式詞組。及物動詞do後應有名詞、代詞等，否則不對，因此B，D不對。
5) The patient was warned ___ oily food after the operation.
A. to eat no B. eating not C. not to eat
D. not eating
答案：C。warn一詞要求後用不定式，此處爲不定式的被動，否定形式爲be warned not to do。
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