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