not hesitate (?.)
- acquiesce
- agree
- be agreeable to
- be dying to
- be eager
- be game
- be open to
- be ready
- be spoiling for
- be willing
- carry through
- collaborate
- consent
- cooperate
- face out
- go along with
- incline
- lean
- look kindly upon
- not hesitate to
- not look back
- plunge into
- stick at nothing
- stop at nothing
- think little of
- think nothing of
- would as leave
- would as lief