What is the past tense of undertake?
The past tense of undertake is under-took, and the past participle is under-taken.
Undertake is an irregular (strong) verb: the vowel changes instead of adding -ed.
All forms of undertake
as a verb
- base
- undertake
- past tense
- under-took
- past participle
- under-taken
- present participle
- under-taking
- third-person singular
- under-takes