English verb conjugation
COULD KOSHER

Regular verb: kosher - koshered - koshered

Affirmation

Simple form	V-ing form
I could kosher you could kosher he could kosher we could kosher you could kosher they could kosher	I could be koshering you could be koshering he could be koshering we could be koshering you could be koshering they could be koshering
Perfect	V-ing perfect
I could have koshered you could have koshered he could have koshered we could have koshered you could have koshered they could have koshered	I could have been koshering you could have been koshering he could have been koshering we could have been koshering you could have been koshering they could have been koshering

Negation

Simple form	V-ing form
I couldn't kosher you couldn't kosher he couldn't kosher we couldn't kosher you couldn't kosher they couldn't kosher	I couldn't be koshering you couldn't be koshering he couldn't be koshering we couldn't be koshering you couldn't be koshering they couldn't be koshering
Perfect	V-ing perfect
I couldn't have koshered you couldn't have koshered he couldn't have koshered we couldn't have koshered you couldn't have koshered they couldn't have koshered	I couldn't have been koshering you couldn't have been koshering he couldn't have been koshering we couldn't have been koshering you couldn't have been koshering they couldn't have been koshering

Interrogative form

Simple form	V-ing form
could I kosher? could you kosher? could he kosher? could we kosher? could you kosher? could they kosher?	could I be koshering? could you be koshering? could he be koshering? could we be koshering? could you be koshering? could they be koshering?
Perfect	V-ing perfect
could I have koshered? could you have koshered? could he have koshered? could we have koshered? could you have koshered? could they have koshered?	could I have been koshering? could you have been koshering? could he have been koshering? could we have been koshering? could you have been koshering? could they have been koshering?

Interro-negative form

Simple form	V-ing form
couldn't I kosher? couldn't you kosher? couldn't he kosher? couldn't we kosher? couldn't you kosher? couldn't they kosher?	couldn't I be koshering? couldn't you be koshering? couldn't he be koshering? couldn't we be koshering? couldn't you be koshering? couldn't they be koshering?
Perfect	V-ing perfect
couldn't I have koshered? couldn't you have koshered? couldn't he have koshered? couldn't we have koshered? couldn't you have koshered? couldn't they have koshered?	couldn't I have been koshering? couldn't you have been koshering? couldn't he have been koshering? couldn't we have been koshering? couldn't you have been koshering? couldn't they have been koshering?