English Reference

Word

have to

Definition

fixed phrase. you use this to say that something is necessary or that you are forced to do it.

fixed phrase. a semi-modal auxiliary used to express objective obligation or necessity. Unlike 'must', it is frequently used for obligations imposed by external rules or circumstances.

Examples

“I have to go to work now.”

“In this country, you have to drive on the left side of the road.”

“The committee members have to reach a unanimous decision before the fiscal year concludes to secure the necessary funding.”

Examples

simple

“I have to go to work now.”

contextual

“In this country, you have to drive on the left side of the road.”

complex

“The committee members have to reach a unanimous decision before the fiscal year concludes to secure the necessary funding.”

Usage

the 'to' is followed by the base form of a verb.

Teaching tip

contrast with 'must' for internal vs. external obligation; 'have to' is much more common in spoken English and can be used in all tenses.

Pitfall

I must to go.

I have to go.

learners often confuse 'must' and 'have to', incorrectly adding 'to' after 'must'.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Level
A1 · Beginner
Updated

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English Reference