should stir
Regular verb: stir - stirred- stirred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd stir
you'd stir
he'd stir
we'd stir
you'd stir
they'd stir 	I'd be stirring
you'd be stirring
he'd be stirring
we'd be stirring
you'd be stirring
they'd be stirring	I should've stirred
you should've stirred
he should've stirred
we should've stirred
you should've stirred
they should've stirred	I should've been stirring
you should've been stirring
he should've been stirring
we should've been stirring
you should've been stirring
they should've been stirring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't stir
you shouldn't stir
he shouldn't stir
we shouldn't stir
you shouldn't stir
they shouldn't stir 	I shouldn't be stirring
you shouldn't be stirring
he shouldn't be stirring
we shouldn't be stirring
you shouldn't be stirring
they shouldn't be stirring	I shouldn't have stirred
you shouldn't have stirred
he shouldn't have stirred
we shouldn't have stirred
you shouldn't have stirred
they shouldn't have stirred	I shouldn't have been stirring
you shouldn't have been stirring
he shouldn't have been stirring
we shouldn't have been stirring
you shouldn't have been stirring
they shouldn't have been stirring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I stir?
should you stir?
should he stir?
should we stir?
should you stir?
should they stir? 	should I be stirring?
should you be stirring?
should he be stirring?
should we be stirring?
should you be stirring?
should they be stirring? 	should I have stirred?
should you have stirred?
should he have stirred?
should we have stirred?
should you have stirred?
should they have stirred? 	should I have been stirring?
should you have been stirring?
should he have been stirring?
should we have been stirring?
should you have been stirring?
should they have been stirring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I stir?
shouldn't you stir?
shouldn't he stir?
shouldn't we stir?
shouldn't you stir?
shouldn't they stir? 	shouldn't I be stirring?
shouldn't you be stirring?
shouldn't he be stirring?
shouldn't we be stirring?
shouldn't you be stirring?
shouldn't they be stirring? 	shouldn't I have stirred?
shouldn't you have stirred?
shouldn't he have stirred?
shouldn't we have stirred?
shouldn't you have stirred?
shouldn't they have stirred? 	shouldn't I have been stirring?
shouldn't you have been stirring?
shouldn't he have been stirring?
shouldn't we have been stirring?
shouldn't you have been stirring?
shouldn't they have been stirring?