Do lyrics

I can't do it I've tried my best I can't do it I've tried my best I've tried my best I can't do it I've tried my best I can't do it I've tried my best I've tried my best I've tried my best I've tried my best I've tried my best I've tried my best You'll have to do You'll have to do it You'll have to do it (i've tried my best) You'll have to do You'll have to do it You'll have to do it (i've tried my best) (do it) You'll have to do it You'll have to do You'll have to do it (i've tried my best) You'll have to do it You'll have to do it (i've tried my best) You'll have to do You'll have to do it (do it) (i've tried my best) You'll have to do I've tried my best