should diminish
Regular verb: diminish - diminished- diminished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd diminish
you'd diminish
she'd diminish
we'd diminish
you'd diminish
they'd diminish 	I'd be diminishing
you'd be diminishing
she'd be diminishing
we'd be diminishing
you'd be diminishing
they'd be diminishing	I should've diminished
you should've diminished
she should've diminished
we should've diminished
you should've diminished
they should've diminished	I should've been diminishing
you should've been diminishing
she should've been diminishing
we should've been diminishing
you should've been diminishing
they should've been diminishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't diminish
you shouldn't diminish
she shouldn't diminish
we shouldn't diminish
you shouldn't diminish
they shouldn't diminish 	I shouldn't be diminishing
you shouldn't be diminishing
she shouldn't be diminishing
we shouldn't be diminishing
you shouldn't be diminishing
they shouldn't be diminishing	I shouldn't have diminished
you shouldn't have diminished
she shouldn't have diminished
we shouldn't have diminished
you shouldn't have diminished
they shouldn't have diminished	I shouldn't have been diminishing
you shouldn't have been diminishing
she shouldn't have been diminishing
we shouldn't have been diminishing
you shouldn't have been diminishing
they shouldn't have been diminishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I diminish?
should you diminish?
should she diminish?
should we diminish?
should you diminish?
should they diminish? 	should I be diminishing?
should you be diminishing?
should she be diminishing?
should we be diminishing?
should you be diminishing?
should they be diminishing? 	should I have diminished?
should you have diminished?
should she have diminished?
should we have diminished?
should you have diminished?
should they have diminished? 	should I have been diminishing?
should you have been diminishing?
should she have been diminishing?
should we have been diminishing?
should you have been diminishing?
should they have been diminishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I diminish?
shouldn't you diminish?
shouldn't she diminish?
shouldn't we diminish?
shouldn't you diminish?
shouldn't they diminish? 	shouldn't I be diminishing?
shouldn't you be diminishing?
shouldn't she be diminishing?
shouldn't we be diminishing?
shouldn't you be diminishing?
shouldn't they be diminishing? 	shouldn't I have diminished?
shouldn't you have diminished?
shouldn't she have diminished?
shouldn't we have diminished?
shouldn't you have diminished?
shouldn't they have diminished? 	shouldn't I have been diminishing?
shouldn't you have been diminishing?
shouldn't she have been diminishing?
shouldn't we have been diminishing?
shouldn't you have been diminishing?
shouldn't they have been diminishing?