I can trademark you can trademark she can trademark we can trademark you can trademark they can trademark
V-ing form
I can be trademarking you can be trademarking she can be trademarking we can be trademarking you can be trademarking they can be trademarking
Perfect
I can have trademarked you can have trademarked she can have trademarked we can have trademarked you can have trademarked they can have trademarked
V-ing perfect
I can have been trademarking you can have been trademarking she can have been trademarking we can have been trademarking you can have been trademarking they can have been trademarking
Negation
Simple form
I can't trademark you can't trademark she can't trademark we can't trademark you can't trademark they can't trademark
V-ing form
I can't be trademarking you can't be trademarking she can't be trademarking we can't be trademarking you can't be trademarking they can't be trademarking
Perfect
I can't have trademarked you can't have trademarked she can't have trademarked we can't have trademarked you can't have trademarked they can't have trademarked
V-ing perfect
I can't have been trademarking you can't have been trademarking she can't have been trademarking we can't have been trademarking you can't have been trademarking they can't have been trademarking
Interrogative form
Simple form
can I trademark? can you trademark? can she trademark? can we trademark? can you trademark? can they trademark?
V-ing form
can I be trademarking? can you be trademarking? can she be trademarking? can we be trademarking? can you be trademarking? can they be trademarking?
Perfect
can I have trademarked? can you have trademarked? can she have trademarked? can we have trademarked? can you have trademarked? can they have trademarked?
V-ing perfect
can I have been trademarking? can you have been trademarking? can she have been trademarking? can we have been trademarking? can you have been trademarking? can they have been trademarking?
Interro-negative form
Simple form
can't I trademark? can't you trademark? can't she trademark? can't we trademark? can't you trademark? can't they trademark?
V-ing form
can't I be trademarking? can't you be trademarking? can't she be trademarking? can't we be trademarking? can't you be trademarking? can't they be trademarking?
Perfect
can't I have trademarked? can't you have trademarked? can't she have trademarked? can't we have trademarked? can't you have trademarked? can't they have trademarked?
V-ing perfect
can't I have been trademarking? can't you have been trademarking? can't she have been trademarking? can't we have been trademarking? can't you have been trademarking? can't they have been trademarking?