should collar
Regular verb: collar - collared- collared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd collar
you'd collar
he'd collar
we'd collar
you'd collar
they'd collar 	I'd be collaring
you'd be collaring
he'd be collaring
we'd be collaring
you'd be collaring
they'd be collaring	I should've collared
you should've collared
he should've collared
we should've collared
you should've collared
they should've collared	I should've been collaring
you should've been collaring
he should've been collaring
we should've been collaring
you should've been collaring
they should've been collaring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't collar
you shouldn't collar
he shouldn't collar
we shouldn't collar
you shouldn't collar
they shouldn't collar 	I shouldn't be collaring
you shouldn't be collaring
he shouldn't be collaring
we shouldn't be collaring
you shouldn't be collaring
they shouldn't be collaring	I shouldn't have collared
you shouldn't have collared
he shouldn't have collared
we shouldn't have collared
you shouldn't have collared
they shouldn't have collared	I shouldn't have been collaring
you shouldn't have been collaring
he shouldn't have been collaring
we shouldn't have been collaring
you shouldn't have been collaring
they shouldn't have been collaring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I collar?
should you collar?
should he collar?
should we collar?
should you collar?
should they collar? 	should I be collaring?
should you be collaring?
should he be collaring?
should we be collaring?
should you be collaring?
should they be collaring? 	should I have collared?
should you have collared?
should he have collared?
should we have collared?
should you have collared?
should they have collared? 	should I have been collaring?
should you have been collaring?
should he have been collaring?
should we have been collaring?
should you have been collaring?
should they have been collaring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I collar?
shouldn't you collar?
shouldn't he collar?
shouldn't we collar?
shouldn't you collar?
shouldn't they collar? 	shouldn't I be collaring?
shouldn't you be collaring?
shouldn't he be collaring?
shouldn't we be collaring?
shouldn't you be collaring?
shouldn't they be collaring? 	shouldn't I have collared?
shouldn't you have collared?
shouldn't he have collared?
shouldn't we have collared?
shouldn't you have collared?
shouldn't they have collared? 	shouldn't I have been collaring?
shouldn't you have been collaring?
shouldn't he have been collaring?
shouldn't we have been collaring?
shouldn't you have been collaring?
shouldn't they have been collaring?