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Infinitive Form of a Verb: Explanation and Examples - Grammar Monster
What are Infinitives and How Do They Work? | Grammarly
动词不定式(infinitive)的用法 - CSDN博客
Infinitive - Wikipedia
Different FORMS of an INFINITIVE: types, examples, meanings
Infinitives – Uses, Definition & Examples - GRAMMARIST
Infinitive Form of the Verb - Promova
Infinitives - Purdue OWL® - Purdue University
Understanding Infinitives in English Grammar with Examples
Infinitives - Meaning, Definition, Types, How to Use and Examples