should window
Regular verb: window - windowed- windowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd window
you'd window
he'd window
we'd window
you'd window
they'd window 	I'd be windowing
you'd be windowing
he'd be windowing
we'd be windowing
you'd be windowing
they'd be windowing	I should've windowed
you should've windowed
he should've windowed
we should've windowed
you should've windowed
they should've windowed	I should've been windowing
you should've been windowing
he should've been windowing
we should've been windowing
you should've been windowing
they should've been windowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't window
you shouldn't window
he shouldn't window
we shouldn't window
you shouldn't window
they shouldn't window 	I shouldn't be windowing
you shouldn't be windowing
he shouldn't be windowing
we shouldn't be windowing
you shouldn't be windowing
they shouldn't be windowing	I shouldn't have windowed
you shouldn't have windowed
he shouldn't have windowed
we shouldn't have windowed
you shouldn't have windowed
they shouldn't have windowed	I shouldn't have been windowing
you shouldn't have been windowing
he shouldn't have been windowing
we shouldn't have been windowing
you shouldn't have been windowing
they shouldn't have been windowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I window?
should you window?
should he window?
should we window?
should you window?
should they window? 	should I be windowing?
should you be windowing?
should he be windowing?
should we be windowing?
should you be windowing?
should they be windowing? 	should I have windowed?
should you have windowed?
should he have windowed?
should we have windowed?
should you have windowed?
should they have windowed? 	should I have been windowing?
should you have been windowing?
should he have been windowing?
should we have been windowing?
should you have been windowing?
should they have been windowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I window?
shouldn't you window?
shouldn't he window?
shouldn't we window?
shouldn't you window?
shouldn't they window? 	shouldn't I be windowing?
shouldn't you be windowing?
shouldn't he be windowing?
shouldn't we be windowing?
shouldn't you be windowing?
shouldn't they be windowing? 	shouldn't I have windowed?
shouldn't you have windowed?
shouldn't he have windowed?
shouldn't we have windowed?
shouldn't you have windowed?
shouldn't they have windowed? 	shouldn't I have been windowing?
shouldn't you have been windowing?
shouldn't he have been windowing?
shouldn't we have been windowing?
shouldn't you have been windowing?
shouldn't they have been windowing?