Regular verb: walk walk - walk walked - walk walked
Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could walk walk you could walk walk he could walk walk we could walk walk you could walk walk they could walk walk
V-ing form
I could be walk walking you could be walk walking he could be walk walking we could be walk walking you could be walk walking they could be walk walking
Perfect
I could have walk walked you could have walk walked he could have walk walked we could have walk walked you could have walk walked they could have walk walked
V-ing perfect
I could have been walk walking you could have been walk walking he could have been walk walking we could have been walk walking you could have been walk walking they could have been walk walking
Negation
Simple form
I couldn't walk walk you couldn't walk walk he couldn't walk walk we couldn't walk walk you couldn't walk walk they couldn't walk walk
V-ing form
I couldn't be walk walking you couldn't be walk walking he couldn't be walk walking we couldn't be walk walking you couldn't be walk walking they couldn't be walk walking
Perfect
I couldn't have walk walked you couldn't have walk walked he couldn't have walk walked we couldn't have walk walked you couldn't have walk walked they couldn't have walk walked
V-ing perfect
I couldn't have been walk walking you couldn't have been walk walking he couldn't have been walk walking we couldn't have been walk walking you couldn't have been walk walking they couldn't have been walk walking
Interrogative form
Simple form
could I walk walk? could you walk walk? could he walk walk? could we walk walk? could you walk walk? could they walk walk?
V-ing form
could I be walk walking? could you be walk walking? could he be walk walking? could we be walk walking? could you be walk walking? could they be walk walking?
Perfect
could I have walk walked? could you have walk walked? could he have walk walked? could we have walk walked? could you have walk walked? could they have walk walked?
V-ing perfect
could I have been walk walking? could you have been walk walking? could he have been walk walking? could we have been walk walking? could you have been walk walking? could they have been walk walking?
Interro-negative form
Simple form
couldn't I walk walk? couldn't you walk walk? couldn't he walk walk? couldn't we walk walk? couldn't you walk walk? couldn't they walk walk?
V-ing form
couldn't I be walk walking? couldn't you be walk walking? couldn't he be walk walking? couldn't we be walk walking? couldn't you be walk walking? couldn't they be walk walking?
Perfect
couldn't I have walk walked? couldn't you have walk walked? couldn't he have walk walked? couldn't we have walk walked? couldn't you have walk walked? couldn't they have walk walked?
V-ing perfect
couldn't I have been walk walking? couldn't you have been walk walking? couldn't he have been walk walking? couldn't we have been walk walking? couldn't you have been walk walking? couldn't they have been walk walking?