Answer:

occur

Answer	Crossword Clue
OCCUR	Happen
OCCUR	Take place
OCCUR	Come to pass

OCCUR	Suggest itself
OCCUR	Come about
OCCUR	Transpire
OCCUR	Go down, so to speak
OCCUR	Arise
OCCUR	Present itself, as a thought
OCCUR	Come to mind
OCCUR	Come up

OCCUR	Spring to mind
OCCUR	Befall
OCCUR	Crop up
OCCUR	Present itself
OCCUR	Eventuate
OCCUR	Happen.
OCCUR	Appear.
OCCUR	Come to mind.

OCCUR	Come to pass.
OCCUR	Crop up.
OCCUR	Befall.
OCCUR	Take place.
OCCUR	Come about.
OCCUR	Present itself.
OCCUR	Chance.
OCCUR	Suggest itself.

OCCUR	Appear
OCCUR	Exist
OCCUR	Suggest itself (to)
OCCUR	Take 3, clue 3
OCCUR	Strike, with "to"
OCCUR	Become part of history
OCCUR	Hoobastank "Did it ever ... to you that this could be your final day"
OCCUR	Go down

OCCUR	Second part of a quip
OCCUR	"That didn't ... to me"
OCCUR	Come off
OCCUR	Go down or come up