English verb conjugation
COULD INTERBREED

Irregular verb: interbreed - interbred - interbred

Affirmation

Simple form	V-ing form
I could interbreed you could interbreed he could interbreed we could interbreed you could interbreed they could interbreed	I could be interbreeding you could be interbreeding he could be interbreeding we could be interbreeding you could be interbreeding they could be interbreeding
Perfect	V-ing perfect
I could have interbred you could have interbred he could have interbred we could have interbred you could have interbred they could have interbred	I could have been interbreeding you could have been interbreeding he could have been interbreeding we could have been interbreeding you could have been interbreeding they could have been interbreeding

Negation

Simple form	V-ing form
I could not interbreed you could not interbreed he could not interbreed we could not interbreed you could not interbreed they could not interbreed	I could not be interbreeding you could not be interbreeding he could not be interbreeding we could not be interbreeding you could not be interbreeding they could not be interbreeding
Perfect	V-ing perfect
I could not have interbred you could not have interbred he could not have interbred we could not have interbred you could not have interbred they could not have interbred	I could not have been interbreeding you could not have been interbreeding he could not have been interbreeding we could not have been interbreeding you could not have been interbreeding they could not have been interbreeding

Interrogative form

Simple form	V-ing form
could I interbreed? could you interbreed? could he interbreed? could we interbreed? could you interbreed? could they interbreed?	could I be interbreeding? could you be interbreeding? could he be interbreeding? could we be interbreeding? could you be interbreeding? could they be interbreeding?
Perfect	V-ing perfect
could I have interbred? could you have interbred? could he have interbred? could we have interbred? could you have interbred? could they have interbred?	could I have been interbreeding? could you have been interbreeding? could he have been interbreeding? could we have been interbreeding? could you have been interbreeding? could they have been interbreeding?

Interro-negative form

Simple form	V-ing form
could I not interbreed? could you not interbreed? could he not interbreed? could we not interbreed? could you not interbreed? could they not interbreed?	could I not be interbreeding? could you not be interbreeding? could he not be interbreeding? could we not be interbreeding? could you not be interbreeding? could they not be interbreeding?
Perfect	V-ing perfect
could I not have interbred? could you not have interbred? could he not have interbred? could we not have interbred? could you not have interbred? could they not have interbred?	could I not have been interbreeding? could you not have been interbreeding? could he not have been interbreeding? could we not have been interbreeding? could you not have been interbreeding? could they not have been interbreeding?