Which part of speech is 'undertake'?

- প্রদত্ত প্রশ্নে 'undertake' হচ্ছে verb.

• Undertake (verb):
English Meaning: to put oneself under obligation to perform also : to accept as a charge or responsibility.
Bangla Meaning: জোর দিয়ে বলা; অস্বীকার করা; প্রতিশ্রুতি দেওয়া।

Example of Sentences:
The bill requires owners to undertake remedial work on dilapidated buildings.
This is one of the largest aid projects ever undertaken.
Successful candidates will be required to undertake an induction programme.
I'm just beginning to realize the enormity of what I have undertaken.
The agency undertook the survey in January 2004.

Source:
1. Cambridge Dictionary.
2. Accessible Dictionary.
3. Merriam webster Dictionary.