should knot
Regular verb: knot - knotted- knotted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd knot
you'd knot
he'd knot
we'd knot
you'd knot
they'd knot 	I'd be knotting
you'd be knotting
he'd be knotting
we'd be knotting
you'd be knotting
they'd be knotting	I should've knotted
you should've knotted
he should've knotted
we should've knotted
you should've knotted
they should've knotted	I should've been knotting
you should've been knotting
he should've been knotting
we should've been knotting
you should've been knotting
they should've been knotting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't knot
you shouldn't knot
he shouldn't knot
we shouldn't knot
you shouldn't knot
they shouldn't knot 	I shouldn't be knotting
you shouldn't be knotting
he shouldn't be knotting
we shouldn't be knotting
you shouldn't be knotting
they shouldn't be knotting	I shouldn't have knotted
you shouldn't have knotted
he shouldn't have knotted
we shouldn't have knotted
you shouldn't have knotted
they shouldn't have knotted	I shouldn't have been knotting
you shouldn't have been knotting
he shouldn't have been knotting
we shouldn't have been knotting
you shouldn't have been knotting
they shouldn't have been knotting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I knot?
should you knot?
should he knot?
should we knot?
should you knot?
should they knot? 	should I be knotting?
should you be knotting?
should he be knotting?
should we be knotting?
should you be knotting?
should they be knotting? 	should I have knotted?
should you have knotted?
should he have knotted?
should we have knotted?
should you have knotted?
should they have knotted? 	should I have been knotting?
should you have been knotting?
should he have been knotting?
should we have been knotting?
should you have been knotting?
should they have been knotting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I knot?
shouldn't you knot?
shouldn't he knot?
shouldn't we knot?
shouldn't you knot?
shouldn't they knot? 	shouldn't I be knotting?
shouldn't you be knotting?
shouldn't he be knotting?
shouldn't we be knotting?
shouldn't you be knotting?
shouldn't they be knotting? 	shouldn't I have knotted?
shouldn't you have knotted?
shouldn't he have knotted?
shouldn't we have knotted?
shouldn't you have knotted?
shouldn't they have knotted? 	shouldn't I have been knotting?
shouldn't you have been knotting?
shouldn't he have been knotting?
shouldn't we have been knotting?
shouldn't you have been knotting?
shouldn't they have been knotting?