should butter
Regular verb: butter - buttered- buttered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd butter
you'd butter
she'd butter
we'd butter
you'd butter
they'd butter 	I'd be buttering
you'd be buttering
she'd be buttering
we'd be buttering
you'd be buttering
they'd be buttering	I should've buttered
you should've buttered
she should've buttered
we should've buttered
you should've buttered
they should've buttered	I should've been buttering
you should've been buttering
she should've been buttering
we should've been buttering
you should've been buttering
they should've been buttering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't butter
you shouldn't butter
she shouldn't butter
we shouldn't butter
you shouldn't butter
they shouldn't butter 	I shouldn't be buttering
you shouldn't be buttering
she shouldn't be buttering
we shouldn't be buttering
you shouldn't be buttering
they shouldn't be buttering	I shouldn't have buttered
you shouldn't have buttered
she shouldn't have buttered
we shouldn't have buttered
you shouldn't have buttered
they shouldn't have buttered	I shouldn't have been buttering
you shouldn't have been buttering
she shouldn't have been buttering
we shouldn't have been buttering
you shouldn't have been buttering
they shouldn't have been buttering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I butter?
should you butter?
should she butter?
should we butter?
should you butter?
should they butter? 	should I be buttering?
should you be buttering?
should she be buttering?
should we be buttering?
should you be buttering?
should they be buttering? 	should I have buttered?
should you have buttered?
should she have buttered?
should we have buttered?
should you have buttered?
should they have buttered? 	should I have been buttering?
should you have been buttering?
should she have been buttering?
should we have been buttering?
should you have been buttering?
should they have been buttering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I butter?
shouldn't you butter?
shouldn't she butter?
shouldn't we butter?
shouldn't you butter?
shouldn't they butter? 	shouldn't I be buttering?
shouldn't you be buttering?
shouldn't she be buttering?
shouldn't we be buttering?
shouldn't you be buttering?
shouldn't they be buttering? 	shouldn't I have buttered?
shouldn't you have buttered?
shouldn't she have buttered?
shouldn't we have buttered?
shouldn't you have buttered?
shouldn't they have buttered? 	shouldn't I have been buttering?
shouldn't you have been buttering?
shouldn't she have been buttering?
shouldn't we have been buttering?
shouldn't you have been buttering?
shouldn't they have been buttering?