can trademark
Regular verb: trademark - trademarked- trademarked

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

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

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