Modals in the present: pouvoir, vouloir, devoir

Third Group — -OIR Verbs (The Modals)

Some -oir verbs form a special category in French.

They are grouped together because they:

• Play an essential grammatical role
• Are usually followed by another verb
• Are highly irregular

These are commonly called modal verbs.

The four key verbs are:

• pouvoir → can / to be able to
• vouloir → to want
• devoir → must / to have to
• savoir → to know how

Why They Are a Special Category

Although they belong to the -oir family, these verbs are unique because of their function in sentences.

They rarely stand alone.

Instead, they are almost always followed by:

another verb in the infinitive

Examples:

• Je veux manger → I want to eat
• Tu dois partir → You must leave
• Nous pouvons venir → We can come

This structure is extremely common in everyday French.

Conjugation of DEVOIR (to have to / must)

Conjugation of SAVOIR (to know how to)

A Key Spelling Feature: The -X Endings

Two of these verbs have a very unusual characteristic.

In the je and tu forms:

👉 pouvoir and vouloir use -x instead of the usual -s.

This is a rare feature in French conjugation.

Conjugation of POUVOIR (to be able to)

Conjugation of VOULOIR (to want)

Why These Verbs Are Essential

These modal verbs are:

• Extremely frequent
• Necessary for expressing ability, obligation, desire, and knowledge
• Central to everyday communication

Mastering them greatly improves your ability to form natural sentences.