English verb conjugation
COULD TRADEMARK

Regular verb: trademark - trademarked - trademarked

Affirmation

Simple form	V-ing form
I could trademark you could trademark he could trademark we could trademark you could trademark they could trademark	I could be trademarking you could be trademarking he could be trademarking we could be trademarking you could be trademarking they could be trademarking
Perfect	V-ing perfect
I could have trademarked you could have trademarked he could have trademarked we could have trademarked you could have trademarked they could have trademarked	I could have been trademarking you could have been trademarking he could have been trademarking we could have been trademarking you could have been trademarking they could have been trademarking

Negation

Simple form	V-ing form
I couldn't trademark you couldn't trademark he couldn't trademark we couldn't trademark you couldn't trademark they couldn't trademark	I couldn't be trademarking you couldn't be trademarking he couldn't be trademarking we couldn't be trademarking you couldn't be trademarking they couldn't be trademarking
Perfect	V-ing perfect
I couldn't have trademarked you couldn't have trademarked he couldn't have trademarked we couldn't have trademarked you couldn't have trademarked they couldn't have trademarked	I couldn't have been trademarking you couldn't have been trademarking he couldn't have been trademarking we couldn't have been trademarking you couldn't have been trademarking they couldn't have been trademarking

Interrogative form

Simple form	V-ing form
could I trademark? could you trademark? could he trademark? could we trademark? could you trademark? could they trademark?	could I be trademarking? could you be trademarking? could he be trademarking? could we be trademarking? could you be trademarking? could they be trademarking?
Perfect	V-ing perfect
could I have trademarked? could you have trademarked? could he have trademarked? could we have trademarked? could you have trademarked? could they have trademarked?	could I have been trademarking? could you have been trademarking? could he have been trademarking? could we have been trademarking? could you have been trademarking? could they have been trademarking?

Interro-negative form

Simple form	V-ing form
couldn't I trademark? couldn't you trademark? couldn't he trademark? couldn't we trademark? couldn't you trademark? couldn't they trademark?	couldn't I be trademarking? couldn't you be trademarking? couldn't he be trademarking? couldn't we be trademarking? couldn't you be trademarking? couldn't they be trademarking?
Perfect	V-ing perfect
couldn't I have trademarked? couldn't you have trademarked? couldn't he have trademarked? couldn't we have trademarked? couldn't you have trademarked? couldn't they have trademarked?	couldn't I have been trademarking? couldn't you have been trademarking? couldn't he have been trademarking? couldn't we have been trademarking? couldn't you have been trademarking? couldn't they have been trademarking?