work on vs forge

work on is not a noun while forge is a noun.

Word	Noun	Adjective	Verb	Adverb
work on	No	No	Yes	No
forge	Yes	No	Yes	No

work on (noun)	forge (noun)
	a workplace where metal is worked by heating and hammering
	furnace consisting of a special hearth where metal is heated before shaping

work on (verb)	forge (verb)
shape, form, or improve a material	create by hammering
to exert effort in order to do, make, or perform something	make a copy of with the intent to deceive
	make out of components (often in an improvising manner)
	make something, usually for a specific function
	come up with (an idea, plan, explanation, theory, or principle) after a mental effort
	move or act with a sudden increase in speed or energy
	move ahead steadily