English verb conjugation
COULD PHOTOSTAT

Regular verb: photostat - photostatted - photostatted

Affirmation

Simple form	V-ing form
I could photostat you could photostat she could photostat we could photostat you could photostat they could photostat	I could be photostatting you could be photostatting she could be photostatting we could be photostatting you could be photostatting they could be photostatting
Perfect	V-ing perfect
I could have photostatted you could have photostatted she could have photostatted we could have photostatted you could have photostatted they could have photostatted	I could have been photostatting you could have been photostatting she could have been photostatting we could have been photostatting you could have been photostatting they could have been photostatting

Negation

Simple form	V-ing form
I could not photostat you could not photostat she could not photostat we could not photostat you could not photostat they could not photostat	I could not be photostatting you could not be photostatting she could not be photostatting we could not be photostatting you could not be photostatting they could not be photostatting
Perfect	V-ing perfect
I could not have photostatted you could not have photostatted she could not have photostatted we could not have photostatted you could not have photostatted they could not have photostatted	I could not have been photostatting you could not have been photostatting she could not have been photostatting we could not have been photostatting you could not have been photostatting they could not have been photostatting

Interrogative form

Simple form	V-ing form
could I photostat? could you photostat? could she photostat? could we photostat? could you photostat? could they photostat?	could I be photostatting? could you be photostatting? could she be photostatting? could we be photostatting? could you be photostatting? could they be photostatting?
Perfect	V-ing perfect
could I have photostatted? could you have photostatted? could she have photostatted? could we have photostatted? could you have photostatted? could they have photostatted?	could I have been photostatting? could you have been photostatting? could she have been photostatting? could we have been photostatting? could you have been photostatting? could they have been photostatting?

Interro-negative form

Simple form	V-ing form
could I not photostat? could you not photostat? could she not photostat? could we not photostat? could you not photostat? could they not photostat?	could I not be photostatting? could you not be photostatting? could she not be photostatting? could we not be photostatting? could you not be photostatting? could they not be photostatting?
Perfect	V-ing perfect
could I not have photostatted? could you not have photostatted? could she not have photostatted? could we not have photostatted? could you not have photostatted? could they not have photostatted?	could I not have been photostatting? could you not have been photostatting? could she not have been photostatting? could we not have been photostatting? could you not have been photostatting? could they not have been photostatting?