be able to

/biː ˈeɪbl̩ tuː/
modal verb phraseIntermediate
general

To have the physical, mental, or legal capacity to do something

After practicing for months, he was able to play the piano beautifully.

He had developed the skill to play the piano well.

The new software allows users to be able to customize their dashboards.

The software gives users the capability to personalize their dashboards.

💡

Often used to express capability after overcoming obstacles or with permission.

Collocations

be able to dohave the ability to perform an actionbe able to affordhave enough money for something

Synonyms

Antonyms

Related Phrases

be capable ofphrase
have the ability to do something
be permitted tophrase
have official or legal permission to do something

💡Pro Tip

Formal vs. Informal Usage

'Be able to' is slightly more formal than 'can' and is often used in written or formal contexts.

Gold Rule

Modal Verb Pairing

'Be able to' is often used with modal verbs like 'will', 'would', or 'might' to express future or hypothetical capability.

📖Word Origin

Derived from the verb 'able' (from Old English 'æbl'), meaning having the power or skill to do something, combined with the modal verb 'be' and the infinitive marker 'to'.

📝Usage Notes

'Be able to' is often used to describe a general capability, while 'can' is more common in everyday speech. 'Be able to' is frequently used after modal verbs like 'will' or 'would'.

Word Breakdown

be
to exist or occur
root
+
able
having the power or skill to do something
root
+
to
infinitive marker
root
English Dictionary