I could devote you could devote he could devote we could devote you could devote they could devote
V-ing form
I could be devoting you could be devoting he could be devoting we could be devoting you could be devoting they could be devoting
Perfect
I could have devoted you could have devoted he 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 he 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 he 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 he 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 he 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 he 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 he devote? could we devote? could you devote? could they devote?
V-ing form
could I be devoting? could you be devoting? could he be devoting? could we be devoting? could you be devoting? could they be devoting?
Perfect
could I have devoted? could you have devoted? could he 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 he 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 he 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 he 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 he 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 he have been devoting? couldn't we have been devoting? couldn't you have been devoting? couldn't they have been devoting?