Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could devide you could devide she could devide we could devide you could devide they could devide
V-ing form
I could be deviding you could be deviding she could be deviding we could be deviding you could be deviding they could be deviding
Perfect
I could have devided you could have devided she could have devided we could have devided you could have devided they could have devided
V-ing perfect
I could have been deviding you could have been deviding she could have been deviding we could have been deviding you could have been deviding they could have been deviding
Negation
Simple form
I couldn't devide you couldn't devide she couldn't devide we couldn't devide you couldn't devide they couldn't devide
V-ing form
I couldn't be deviding you couldn't be deviding she couldn't be deviding we couldn't be deviding you couldn't be deviding they couldn't be deviding
Perfect
I couldn't have devided you couldn't have devided she couldn't have devided we couldn't have devided you couldn't have devided they couldn't have devided
V-ing perfect
I couldn't have been deviding you couldn't have been deviding she couldn't have been deviding we couldn't have been deviding you couldn't have been deviding they couldn't have been deviding
Interrogative form
Simple form
could I devide? could you devide? could she devide? could we devide? could you devide? could they devide?
V-ing form
could I be deviding? could you be deviding? could she be deviding? could we be deviding? could you be deviding? could they be deviding?
Perfect
could I have devided? could you have devided? could she have devided? could we have devided? could you have devided? could they have devided?
V-ing perfect
could I have been deviding? could you have been deviding? could she have been deviding? could we have been deviding? could you have been deviding? could they have been deviding?
Interro-negative form
Simple form
couldn't I devide? couldn't you devide? couldn't she devide? couldn't we devide? couldn't you devide? couldn't they devide?
V-ing form
couldn't I be deviding? couldn't you be deviding? couldn't she be deviding? couldn't we be deviding? couldn't you be deviding? couldn't they be deviding?
Perfect
couldn't I have devided? couldn't you have devided? couldn't she have devided? couldn't we have devided? couldn't you have devided? couldn't they have devided?
V-ing perfect
couldn't I have been deviding? couldn't you have been deviding? couldn't she have been deviding? couldn't we have been deviding? couldn't you have been deviding? couldn't they have been deviding?