draw a blank vs forget

draw a blank and forget both are verbs.

Word	Noun	Adjective	Verb	Adverb
draw a blank	No	No	Yes	No
forget	No	No	Yes	No

As verbs, draw a blank and forget are synonyms defined as:

Other synonyms of draw a blank include blank out, block.

draw a blank (verb)	forget (verb)
be unable to remember	be unable to remember
	dismiss from the mind; stop remembering
	leave behind unintentionally
	forget to do something