How do you use have or has in a sentence?

"Have" and "has" are both forms of the verb "to have" and they are used to express possession, existence, or actions. Here's how you use them:

1. "Have" is used for:

* Plural subjects: When the subject of the sentence is plural (e.g., cats, friends, students), you use "have".

* Example: "The cats have nine lives."

* First and second person singular and plural: This includes "I", "we", "you", and "you all".

* Example: "I have a dog."

* Example: "We have a lot of homework."

* Present perfect tense: This is when you talk about actions that started in the past and continue to the present.

* Example: "I have lived in this city for ten years."

2. "Has" is used for:

* Singular third person subjects: When the subject of the sentence is singular and a third person (e.g., he, she, it, John, the dog), you use "has".

* Example: "John has a new car."

* Example: "The dog has a bone."

* Present perfect tense with singular third person subjects:

* Example: "She has been to Paris."

Here are some examples of sentences using "have" and "has" in different contexts:

* Possession: "The children have many toys." / "She has a beautiful dress."

* Existence: "We have a problem." / "There has been a change in plans."

* Actions: "I have finished my work." / "She has called her mother."

Remember: The choice between "have" and "has" depends on the subject of the sentence and the tense of the verb.