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