must trademark
Verbo regular: trademark - trademarked- trademarked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must trademark
you must trademark
he must trademark
we must trademark
you must trademark
they must trademark 	I must be trademarking
you must be trademarking
he must be trademarking
we must be trademarking
you must be trademarking
they must be trademarking	I must have trademarked
you must have trademarked
he must have trademarked
we must have trademarked
you must have trademarked
they must have trademarked	I must have been trademarking
you must have been trademarking
he must have been trademarking
we must have been trademarking
you must have been trademarking
they must have been trademarking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not trademark
you must not trademark
he must not trademark
we must not trademark
you must not trademark
they must not trademark 	I must not be trademarking
you must not be trademarking
he must not be trademarking
we must not be trademarking
you must not be trademarking
they must not be trademarking	I must not have trademarked
you must not have trademarked
he must not have trademarked
we must not have trademarked
you must not have trademarked
they must not have trademarked	I must not have been trademarking
you must not have been trademarking
he must not have been trademarking
we must not have been trademarking
you must not have been trademarking
they must not have been trademarking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I trademark?
must you trademark?
must he trademark?
must we trademark?
must you trademark?
must they trademark? 	must I be trademarking?
must you be trademarking?
must he be trademarking?
must we be trademarking?
must you be trademarking?
must they be trademarking? 	must I have trademarked?
must you have trademarked?
must he have trademarked?
must we have trademarked?
must you have trademarked?
must they have trademarked? 	must I have been trademarking?
must you have been trademarking?
must he have been trademarking?
must we have been trademarking?
must you have been trademarking?
must they have been trademarking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not trademark?
must you not trademark?
must he not trademark?
must we not trademark?
must you not trademark?
must they not trademark? 	must I not be trademarking?
must you not be trademarking?
must he not be trademarking?
must we not be trademarking?
must you not be trademarking?
must they not be trademarking? 	must I not have trademarked?
must you not have trademarked?
must he not have trademarked?
must we not have trademarked?
must you not have trademarked?
must they not have trademarked? 	must I not have been trademarking?
must you not have been trademarking?
must he not have been trademarking?
must we not have been trademarking?
must you not have been trademarking?
must they not have been trademarking?