Keywords
Abstract
The structure “have to” plays a significant role in expressing obligation and necessity in the . It is widely used in both spoken and written communication to indicate external requirements, rules, and unavoidable duties. Unlike modal verbs, “have to” functions as a semi-modal construction, combining lexical and grammatical properties. This article provides a scientific and analytical examination of “have to,” focusing on its grammatical structure, semantic functions, syntactic behavior, and pedagogical importance in English language teaching. Drawing on established grammatical theories and educational research, the study highlights common learner difficulties and discusses effective instructional strategies for mastering the use of “have to” in various communicative contexts.References
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