hasnt

Hasn't is the contracted form of has not, used with third-person singular subjects such as he, she, it, or a singular noun. It is used to form the present perfect negative: for example, "She hasn't finished yet" or "The project hasn't started." In questions, it appears as "Hasn't he arrived?" or "Hasn't the report been filed?" The contraction helps create natural, flowing speech and common written style in informal and many formal contexts where contractions are allowed.

In English, contractions pair with the appropriate auxiliary verb. "Hasn't" accompanies the third-person singular form of have (has) when negating the present perfect or other tenses that use has. By contrast, "haven't" is used with I, you, we, and they (have not). The full forms "has not" and "have not" are also correct but are typically more formal or emphatic and less common in everyday writing.

Spelling and punctuation are important for standard written English. The correct spelling includes an apostrophe: hasn’t. In informal digital communication, some texts may render it as "hasnt" without the apostrophe, but this is generally considered nonstandard in formal writing. The apostrophe marks the omission of the letters o in not.

Related forms include haven’t (for I/you/we/they) and had not (with past tense forms such as "She hadn't finished" when referring to the past). As a contraction of a common verb plus negation, hasn’t is a routine component of English grammar, reflecting ordinary speech patterns and a wide range of stylistic registers.