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