The words โOught toโ and โHave toโ are modal auxiliary words in English grammar. Both these words are used widely by people living in different countries using English as their medium of communication.
Key Takeaways
- โOught toโ expresses a moral obligation or duty, while โhave toโ expresses a necessity or requirement.
- โOught toโ is often used to give advice or make recommendations, while โhave toโ describes a situation with no other option.
- โOught toโ suggests a personal choice or preference, while โhave toโ implies an external requirement or obligation.
Ought To vs Have To
When someone has to say something in a Sentence in a way to obligate eternally, then the word โhave toโ is to be used, and on the other hand, when someone wants to give any advice or request in place of the word, should then โOught toโ is supposed to be used.ย

The word โOught toโ is a modal auxiliary verb. This word sometimes is used in replacement of the word should.
The word โHave toโ is a modal auxiliary verb. This verb is used in replacement of the word need to.
Comparison Table
Parameters of Comparison | Ought To | Have To |
---|---|---|
Function | This word is used to obligate someone. | This word is used when someone wants to advise someone. |
How often is it used | The word โOught toโ isnโt that commonly used by people. | The word โHave toโ is commonly used by people. |
Types of communication | The word โOught toโ is used more in written communication. | The word โHave toโ is used in spoken and written communication. |
Type | The word โoughtโ is a semi-modal verb. | The word โhave toโ is a modal auxiliary verb. |
Degree | The degree of intensity of doing something where โOught toโ is used is less. | The degree of intensity of doing something where โHave toโ is used is more in a sentence. |
What is Ought To?
The word โOught toโ is a modal auxiliary verb. People replace this word with the word should.
This word is often stated as a semi-modal verb. This means this word can be used as a modal and main verb.
The following are some examples where the word โOught toโ is used in a sentence-
- Isnโt this ought to happen at this point?
- She ought to study as her exams are Coming near.
- Everyone ought to do more exercise and yoga daily.
- Sanitary napkins ought to be free here.
What is Have To?
The word โHave toโ is a modal auxiliary verb. This verb is used in replacement of the word need to.
This word states that someone has to do specific work compulsorily. This word is the present tense of the word had to.
Following are some examples where the word โHave toโ is used in a sentence-
- We have to go to the party tomorrow.
- I have to attend the meeting tomorrow.
- You have to finish eating before time from now on.
- They will have to study to pass the exam.
Main Differences Between Ought To and Have To
- When someone wants to show a sense of obligation, the word โOught toโ is used, and on the other hand, when someone wants to give advice or ask for permission, the term โHave toโ is used.
- The word โOught toโ isnโt that commonly used by people; on the other hand, the word โHave toโ is used commonly by people.
- The degree of intensity of doing something where โOught toโ is used is less in a sentence, and on the other hand, the degree of power of doing something where โHave toโ is used is more in a sentence.
- The word โOught toโ is used more in written communication, and on the other hand, the word โHave toโ is used in both spoken and written communication.
- Ought to be a semi-modal verb; however, the word Have to is a modal auxiliary verb.


Emma Smith holds an MA degree in English from Irvine Valley College. She has been a Journalist since 2002, writing articles on the English language, Sports, and Law. Read more about me on her bio page.