What is the past tense of know?
The past tense of know is knew, and the past participle is known.
Know is an irregular (strong) verb: the vowel changes instead of adding -ed.
All forms of know
as a noun
- base
- know
- plural
- knows
as a verb
- base
- know
- past tense
- knew
- past participle
- known
- present participle
- knowing
- third-person singular
- knows