should stall
Regular verb: stall - stalled- stalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd stall
you'd stall
she'd stall
we'd stall
you'd stall
they'd stall 	I'd be stalling
you'd be stalling
she'd be stalling
we'd be stalling
you'd be stalling
they'd be stalling	I should've stalled
you should've stalled
she should've stalled
we should've stalled
you should've stalled
they should've stalled	I should've been stalling
you should've been stalling
she should've been stalling
we should've been stalling
you should've been stalling
they should've been stalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't stall
you shouldn't stall
she shouldn't stall
we shouldn't stall
you shouldn't stall
they shouldn't stall 	I shouldn't be stalling
you shouldn't be stalling
she shouldn't be stalling
we shouldn't be stalling
you shouldn't be stalling
they shouldn't be stalling	I shouldn't have stalled
you shouldn't have stalled
she shouldn't have stalled
we shouldn't have stalled
you shouldn't have stalled
they shouldn't have stalled	I shouldn't have been stalling
you shouldn't have been stalling
she shouldn't have been stalling
we shouldn't have been stalling
you shouldn't have been stalling
they shouldn't have been stalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I stall?
should you stall?
should she stall?
should we stall?
should you stall?
should they stall? 	should I be stalling?
should you be stalling?
should she be stalling?
should we be stalling?
should you be stalling?
should they be stalling? 	should I have stalled?
should you have stalled?
should she have stalled?
should we have stalled?
should you have stalled?
should they have stalled? 	should I have been stalling?
should you have been stalling?
should she have been stalling?
should we have been stalling?
should you have been stalling?
should they have been stalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I stall?
shouldn't you stall?
shouldn't she stall?
shouldn't we stall?
shouldn't you stall?
shouldn't they stall? 	shouldn't I be stalling?
shouldn't you be stalling?
shouldn't she be stalling?
shouldn't we be stalling?
shouldn't you be stalling?
shouldn't they be stalling? 	shouldn't I have stalled?
shouldn't you have stalled?
shouldn't she have stalled?
shouldn't we have stalled?
shouldn't you have stalled?
shouldn't they have stalled? 	shouldn't I have been stalling?
shouldn't you have been stalling?
shouldn't she have been stalling?
shouldn't we have been stalling?
shouldn't you have been stalling?
shouldn't they have been stalling?