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