English verb conjugation
COULD CROSSRUFF

Regular verb: crossruff - crossruffed - crossruffed

Affirmation

Simple form	V-ing form
I could crossruff you could crossruff he could crossruff we could crossruff you could crossruff they could crossruff	I could be crossruffing you could be crossruffing he could be crossruffing we could be crossruffing you could be crossruffing they could be crossruffing
Perfect	V-ing perfect
I could have crossruffed you could have crossruffed he could have crossruffed we could have crossruffed you could have crossruffed they could have crossruffed	I could have been crossruffing you could have been crossruffing he could have been crossruffing we could have been crossruffing you could have been crossruffing they could have been crossruffing

Negation

Simple form	V-ing form
I couldn't crossruff you couldn't crossruff he couldn't crossruff we couldn't crossruff you couldn't crossruff they couldn't crossruff	I couldn't be crossruffing you couldn't be crossruffing he couldn't be crossruffing we couldn't be crossruffing you couldn't be crossruffing they couldn't be crossruffing
Perfect	V-ing perfect
I couldn't have crossruffed you couldn't have crossruffed he couldn't have crossruffed we couldn't have crossruffed you couldn't have crossruffed they couldn't have crossruffed	I couldn't have been crossruffing you couldn't have been crossruffing he couldn't have been crossruffing we couldn't have been crossruffing you couldn't have been crossruffing they couldn't have been crossruffing

Interrogative form

Simple form	V-ing form
could I crossruff? could you crossruff? could he crossruff? could we crossruff? could you crossruff? could they crossruff?	could I be crossruffing? could you be crossruffing? could he be crossruffing? could we be crossruffing? could you be crossruffing? could they be crossruffing?
Perfect	V-ing perfect
could I have crossruffed? could you have crossruffed? could he have crossruffed? could we have crossruffed? could you have crossruffed? could they have crossruffed?	could I have been crossruffing? could you have been crossruffing? could he have been crossruffing? could we have been crossruffing? could you have been crossruffing? could they have been crossruffing?

Interro-negative form

Simple form	V-ing form
couldn't I crossruff? couldn't you crossruff? couldn't he crossruff? couldn't we crossruff? couldn't you crossruff? couldn't they crossruff?	couldn't I be crossruffing? couldn't you be crossruffing? couldn't he be crossruffing? couldn't we be crossruffing? couldn't you be crossruffing? couldn't they be crossruffing?
Perfect	V-ing perfect
couldn't I have crossruffed? couldn't you have crossruffed? couldn't he have crossruffed? couldn't we have crossruffed? couldn't you have crossruffed? couldn't they have crossruffed?	couldn't I have been crossruffing? couldn't you have been crossruffing? couldn't he have been crossruffing? couldn't we have been crossruffing? couldn't you have been crossruffing? couldn't they have been crossruffing?