Definition: the basic form of a verb that usually follows 'to' Level: B1
'To be'是英语中最基本的不定式。
'To be' is the most basic ___infinitive in English.
在'I want to leave'中，'leave'是一个不定式。
In 'I want to leave', 'leave' is an ___infinitive.
在'can'后面你需要使用不定式。
You need to use the ___infinitive after 'can'.
