English verb conjugation
COULD ROOT

Regular verb: root - rooted - rooted

Affirmation

Simple form	V-ing form
I could root you could root he could root we could root you could root they could root	I could be rooting you could be rooting he could be rooting we could be rooting you could be rooting they could be rooting
Perfect	V-ing perfect
I could have rooted you could have rooted he could have rooted we could have rooted you could have rooted they could have rooted	I could have been rooting you could have been rooting he could have been rooting we could have been rooting you could have been rooting they could have been rooting

Negation

Simple form	V-ing form
I couldn't root you couldn't root he couldn't root we couldn't root you couldn't root they couldn't root	I couldn't be rooting you couldn't be rooting he couldn't be rooting we couldn't be rooting you couldn't be rooting they couldn't be rooting
Perfect	V-ing perfect
I couldn't have rooted you couldn't have rooted he couldn't have rooted we couldn't have rooted you couldn't have rooted they couldn't have rooted	I couldn't have been rooting you couldn't have been rooting he couldn't have been rooting we couldn't have been rooting you couldn't have been rooting they couldn't have been rooting

Interrogative form

Simple form	V-ing form
could I root? could you root? could he root? could we root? could you root? could they root?	could I be rooting? could you be rooting? could he be rooting? could we be rooting? could you be rooting? could they be rooting?
Perfect	V-ing perfect
could I have rooted? could you have rooted? could he have rooted? could we have rooted? could you have rooted? could they have rooted?	could I have been rooting? could you have been rooting? could he have been rooting? could we have been rooting? could you have been rooting? could they have been rooting?

Interro-negative form

Simple form	V-ing form
couldn't I root? couldn't you root? couldn't he root? couldn't we root? couldn't you root? couldn't they root?	couldn't I be rooting? couldn't you be rooting? couldn't he be rooting? couldn't we be rooting? couldn't you be rooting? couldn't they be rooting?
Perfect	V-ing perfect
couldn't I have rooted? couldn't you have rooted? couldn't he have rooted? couldn't we have rooted? couldn't you have rooted? couldn't they have rooted?	couldn't I have been rooting? couldn't you have been rooting? couldn't he have been rooting? couldn't we have been rooting? couldn't you have been rooting? couldn't they have been rooting?