I could impregnate you could impregnate he could impregnate we could impregnate you could impregnate they could impregnate
V-ing form
I could be impregnating you could be impregnating he could be impregnating we could be impregnating you could be impregnating they could be impregnating
Perfect
I could have impregnated you could have impregnated he could have impregnated we could have impregnated you could have impregnated they could have impregnated
V-ing perfect
I could have been impregnating you could have been impregnating he could have been impregnating we could have been impregnating you could have been impregnating they could have been impregnating
Negation
Simple form
I couldn't impregnate you couldn't impregnate he couldn't impregnate we couldn't impregnate you couldn't impregnate they couldn't impregnate
V-ing form
I couldn't be impregnating you couldn't be impregnating he couldn't be impregnating we couldn't be impregnating you couldn't be impregnating they couldn't be impregnating
Perfect
I couldn't have impregnated you couldn't have impregnated he couldn't have impregnated we couldn't have impregnated you couldn't have impregnated they couldn't have impregnated
V-ing perfect
I couldn't have been impregnating you couldn't have been impregnating he couldn't have been impregnating we couldn't have been impregnating you couldn't have been impregnating they couldn't have been impregnating
Interrogative form
Simple form
could I impregnate? could you impregnate? could he impregnate? could we impregnate? could you impregnate? could they impregnate?
V-ing form
could I be impregnating? could you be impregnating? could he be impregnating? could we be impregnating? could you be impregnating? could they be impregnating?
Perfect
could I have impregnated? could you have impregnated? could he have impregnated? could we have impregnated? could you have impregnated? could they have impregnated?
V-ing perfect
could I have been impregnating? could you have been impregnating? could he have been impregnating? could we have been impregnating? could you have been impregnating? could they have been impregnating?
Interro-negative form
Simple form
couldn't I impregnate? couldn't you impregnate? couldn't he impregnate? couldn't we impregnate? couldn't you impregnate? couldn't they impregnate?
V-ing form
couldn't I be impregnating? couldn't you be impregnating? couldn't he be impregnating? couldn't we be impregnating? couldn't you be impregnating? couldn't they be impregnating?
Perfect
couldn't I have impregnated? couldn't you have impregnated? couldn't he have impregnated? couldn't we have impregnated? couldn't you have impregnated? couldn't they have impregnated?
V-ing perfect
couldn't I have been impregnating? couldn't you have been impregnating? couldn't he have been impregnating? couldn't we have been impregnating? couldn't you have been impregnating? couldn't they have been impregnating?