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