Have To vs. Has To — What's the Difference?
"Have to" and "has to" both express obligation, but "have to" is used with "I," "we," "you," and "they," while "has to" is used with "he," "she," and "it."
Difference Between Have To and Has To
Table of Contents
"Have to" and "has to" are modal verb phrases used to indicate necessity or obligation. "Have to" is versatile and finds its place with most personal pronouns, such as "I," "you," "we," and "they." On the other hand, "has to" is specific in its usage, aligning with third-person singular subjects: "he," "she," and "it."
When one uses "have to," it implies an external obligation or requirement. For instance, when someone says, "They have to complete the assignment," it indicates a responsibility or mandate. Similarly, "has to" carries the same implication of necessity but adheres to its grammatical constraint of being used with third-person singular subjects.
In the context of questions, both "have to" and "has to" can be employed to inquire about obligations. For example, "Do you have to go to the meeting?" or "Does she has to attend the class?" Note, however, that while the form "have" remains consistent in questions, "has" is replaced by "does" and the base form "have" follows.
From a tense perspective, "have to" and "has to" are present tense forms. When expressing obligation in the past, one would say "had to," regardless of the subject. For instance, "I had to" or "She had to."
Both "have to" and "has to" can be negated using "do not" or "does not" respectively. "I don't have to" suggests a lack of obligation, as does "She doesn't has to."
I, you, we, they
He, she, it
Necessity or obligation
Necessity or obligation with third-person singular
Do you have to?
Does she has to?
Don't have to
Doesn't has to
Compare with Definitions
Used to denote an external compulsion or necessity.
They have to wear uniforms at school.
Denotes requirements or prerequisites.
The engine has to be checked before the trip.
Shows an action that is deemed necessary.
You have to see that movie; it's fantastic!
Indicates a necessary action or deed.
The computer has to be rebooted.
"Have to" indicates an obligation or requirement.
I have to finish this project by tomorrow.
Expresses mandatory rules or protocols.
He has to wear a helmet when biking.
Represents a duty or task that needs completion.
We have to get groceries after work.
"Has to" signifies an obligation for third-person singular subjects.
She has to study for her finals.
Can be used to signify rules or laws.
In this state, you have to wear seat belts.
Points to a compulsion for a task.
The cat has to be fed twice a day.
How do I negate "have to"?
Use "don't" before "have to," as in "I don't have to."
How do I ask a question using "have to"?
Use the auxiliary "do" or "does," like "Do you have to?" or "Does she has to?"
When should I use "have to"?
Use "have to" with "I," "we," "you," and "they."
Can "has to" be used with plural subjects?
No, "has to" is used with third-person singular subjects like "he," "she," and "it."
Is there a past tense form of "have to" and "has to"?
Yes, both convert to "had to" for the past tense.
What's the negative form of "has to"?
It's "doesn't has to."
Do "have to" and "has to" indicate a personal feeling or external obligation?
They usually indicate an external obligation or requirement.
Can I say "She have to"?
No, the correct form is "She has to."
Is "has to" used in American English?
Yes, both "have to" and "has to" are used in American English.
Are there any other tenses for "has to"?
For the past, it's "had to." For future, "will have to" works for all subjects.
How do I use "has to" in a question?
Use "Does" as the auxiliary, like "Does she has to go?"
Can "have to" and "has to" be used interchangeably?
No, they differ based on the subject they're used with.
How do I use "have to" in the negative?
"I don't have to," "You don't have to," etc.
How is "have to" different from "must"?
While both indicate obligation, "have to" often implies an external obligation, whereas "must" can be more internal or subjective.
What's the future form of "have to"?
You can use "will have to," e.g., "I will have to go."
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