should crossbreed
Irregular verb: crossbreed - crossbred- crossbred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd crossbreed
you'd crossbreed
he'd crossbreed
we'd crossbreed
you'd crossbreed
they'd crossbreed 	I'd be crossbreeding
you'd be crossbreeding
he'd be crossbreeding
we'd be crossbreeding
you'd be crossbreeding
they'd be crossbreeding	I should've crossbred
you should've crossbred
he should've crossbred
we should've crossbred
you should've crossbred
they should've crossbred	I should've been crossbreeding
you should've been crossbreeding
he should've been crossbreeding
we should've been crossbreeding
you should've been crossbreeding
they should've been crossbreeding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't crossbreed
you shouldn't crossbreed
he shouldn't crossbreed
we shouldn't crossbreed
you shouldn't crossbreed
they shouldn't crossbreed 	I shouldn't be crossbreeding
you shouldn't be crossbreeding
he shouldn't be crossbreeding
we shouldn't be crossbreeding
you shouldn't be crossbreeding
they shouldn't be crossbreeding	I shouldn't have crossbred
you shouldn't have crossbred
he shouldn't have crossbred
we shouldn't have crossbred
you shouldn't have crossbred
they shouldn't have crossbred	I shouldn't have been crossbreeding
you shouldn't have been crossbreeding
he shouldn't have been crossbreeding
we shouldn't have been crossbreeding
you shouldn't have been crossbreeding
they shouldn't have been crossbreeding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I crossbreed?
should you crossbreed?
should he crossbreed?
should we crossbreed?
should you crossbreed?
should they crossbreed? 	should I be crossbreeding?
should you be crossbreeding?
should he be crossbreeding?
should we be crossbreeding?
should you be crossbreeding?
should they be crossbreeding? 	should I have crossbred?
should you have crossbred?
should he have crossbred?
should we have crossbred?
should you have crossbred?
should they have crossbred? 	should I have been crossbreeding?
should you have been crossbreeding?
should he have been crossbreeding?
should we have been crossbreeding?
should you have been crossbreeding?
should they have been crossbreeding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I crossbreed?
shouldn't you crossbreed?
shouldn't he crossbreed?
shouldn't we crossbreed?
shouldn't you crossbreed?
shouldn't they crossbreed? 	shouldn't I be crossbreeding?
shouldn't you be crossbreeding?
shouldn't he be crossbreeding?
shouldn't we be crossbreeding?
shouldn't you be crossbreeding?
shouldn't they be crossbreeding? 	shouldn't I have crossbred?
shouldn't you have crossbred?
shouldn't he have crossbred?
shouldn't we have crossbred?
shouldn't you have crossbred?
shouldn't they have crossbred? 	shouldn't I have been crossbreeding?
shouldn't you have been crossbreeding?
shouldn't he have been crossbreeding?
shouldn't we have been crossbreeding?
shouldn't you have been crossbreeding?
shouldn't they have been crossbreeding?