I could devote you could devote she could devote we could devote you could devote they could devote
V-ing form
I could be devoting you could be devoting she could be devoting we could be devoting you could be devoting they could be devoting
Perfect
I could have devoted you could have devoted she could have devoted we could have devoted you could have devoted they could have devoted
V-ing perfect
I could have been devoting you could have been devoting she could have been devoting we could have been devoting you could have been devoting they could have been devoting
Negation
Simple form
I couldn't devote you couldn't devote she couldn't devote we couldn't devote you couldn't devote they couldn't devote
V-ing form
I couldn't be devoting you couldn't be devoting she couldn't be devoting we couldn't be devoting you couldn't be devoting they couldn't be devoting
Perfect
I couldn't have devoted you couldn't have devoted she couldn't have devoted we couldn't have devoted you couldn't have devoted they couldn't have devoted
V-ing perfect
I couldn't have been devoting you couldn't have been devoting she couldn't have been devoting we couldn't have been devoting you couldn't have been devoting they couldn't have been devoting
Interrogative form
Simple form
could I devote? could you devote? could she devote? could we devote? could you devote? could they devote?
V-ing form
could I be devoting? could you be devoting? could she be devoting? could we be devoting? could you be devoting? could they be devoting?
Perfect
could I have devoted? could you have devoted? could she have devoted? could we have devoted? could you have devoted? could they have devoted?
V-ing perfect
could I have been devoting? could you have been devoting? could she have been devoting? could we have been devoting? could you have been devoting? could they have been devoting?
Interro-negative form
Simple form
couldn't I devote? couldn't you devote? couldn't she devote? couldn't we devote? couldn't you devote? couldn't they devote?
V-ing form
couldn't I be devoting? couldn't you be devoting? couldn't she be devoting? couldn't we be devoting? couldn't you be devoting? couldn't they be devoting?
Perfect
couldn't I have devoted? couldn't you have devoted? couldn't she have devoted? couldn't we have devoted? couldn't you have devoted? couldn't they have devoted?
V-ing perfect
couldn't I have been devoting? couldn't you have been devoting? couldn't she have been devoting? couldn't we have been devoting? couldn't you have been devoting? couldn't they have been devoting?