verb

opened

opened

She opened the window for some fresh air.

She opened the window for some fresh air.

The new library opened last week.

The new library opened last week.

((sth.)) past tense of 'to open' She opened the window.

past tense of 'to open' (intransitive) The new library opened last week.

Synonyms: unlocked, unfastened (past); Antonyms: closed, shut (past)

The base verb 'open' plus the regular past tense and past participle suffix '-ed'.

Remember that for most regular English verbs, you add '-ed' to form the past tense, just like 'walk' -> 'walked'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.