Irregular Verbs

	Base Form	Past Simple	Past Participle
With regular verbs, the rule is simple...
The past simple and past participle always end in -ed:	finish	finished	finished
	stop	stopped	stopped
	work	worked	worked
But with irregular verbs, there is no rule...
Sometimes the verb changes completely:	sing	sang	sung
Sometimes there is "half" a change:	buy	bought	bought
Sometimes there is no change:	cut	cut	cut