should crouch
Regular verb: crouch - crouched- crouched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd crouch
you'd crouch
she'd crouch
we'd crouch
you'd crouch
they'd crouch 	I'd be crouching
you'd be crouching
she'd be crouching
we'd be crouching
you'd be crouching
they'd be crouching	I should've crouched
you should've crouched
she should've crouched
we should've crouched
you should've crouched
they should've crouched	I should've been crouching
you should've been crouching
she should've been crouching
we should've been crouching
you should've been crouching
they should've been crouching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't crouch
you shouldn't crouch
she shouldn't crouch
we shouldn't crouch
you shouldn't crouch
they shouldn't crouch 	I shouldn't be crouching
you shouldn't be crouching
she shouldn't be crouching
we shouldn't be crouching
you shouldn't be crouching
they shouldn't be crouching	I shouldn't have crouched
you shouldn't have crouched
she shouldn't have crouched
we shouldn't have crouched
you shouldn't have crouched
they shouldn't have crouched	I shouldn't have been crouching
you shouldn't have been crouching
she shouldn't have been crouching
we shouldn't have been crouching
you shouldn't have been crouching
they shouldn't have been crouching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I crouch?
should you crouch?
should she crouch?
should we crouch?
should you crouch?
should they crouch? 	should I be crouching?
should you be crouching?
should she be crouching?
should we be crouching?
should you be crouching?
should they be crouching? 	should I have crouched?
should you have crouched?
should she have crouched?
should we have crouched?
should you have crouched?
should they have crouched? 	should I have been crouching?
should you have been crouching?
should she have been crouching?
should we have been crouching?
should you have been crouching?
should they have been crouching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I crouch?
shouldn't you crouch?
shouldn't she crouch?
shouldn't we crouch?
shouldn't you crouch?
shouldn't they crouch? 	shouldn't I be crouching?
shouldn't you be crouching?
shouldn't she be crouching?
shouldn't we be crouching?
shouldn't you be crouching?
shouldn't they be crouching? 	shouldn't I have crouched?
shouldn't you have crouched?
shouldn't she have crouched?
shouldn't we have crouched?
shouldn't you have crouched?
shouldn't they have crouched? 	shouldn't I have been crouching?
shouldn't you have been crouching?
shouldn't she have been crouching?
shouldn't we have been crouching?
shouldn't you have been crouching?
shouldn't they have been crouching?