must tin
Verbo regular: tin - tinned- tinned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tin
you must tin
he must tin
we must tin
you must tin
they must tin 	I must be tinning
you must be tinning
he must be tinning
we must be tinning
you must be tinning
they must be tinning	I must have tinned
you must have tinned
he must have tinned
we must have tinned
you must have tinned
they must have tinned	I must have been tinning
you must have been tinning
he must have been tinning
we must have been tinning
you must have been tinning
they must have been tinning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not tin
you must not tin
he must not tin
we must not tin
you must not tin
they must not tin 	I must not be tinning
you must not be tinning
he must not be tinning
we must not be tinning
you must not be tinning
they must not be tinning	I must not have tinned
you must not have tinned
he must not have tinned
we must not have tinned
you must not have tinned
they must not have tinned	I must not have been tinning
you must not have been tinning
he must not have been tinning
we must not have been tinning
you must not have been tinning
they must not have been tinning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tin?
must you tin?
must he tin?
must we tin?
must you tin?
must they tin? 	must I be tinning?
must you be tinning?
must he be tinning?
must we be tinning?
must you be tinning?
must they be tinning? 	must I have tinned?
must you have tinned?
must he have tinned?
must we have tinned?
must you have tinned?
must they have tinned? 	must I have been tinning?
must you have been tinning?
must he have been tinning?
must we have been tinning?
must you have been tinning?
must they have been tinning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not tin?
must you not tin?
must he not tin?
must we not tin?
must you not tin?
must they not tin? 	must I not be tinning?
must you not be tinning?
must he not be tinning?
must we not be tinning?
must you not be tinning?
must they not be tinning? 	must I not have tinned?
must you not have tinned?
must he not have tinned?
must we not have tinned?
must you not have tinned?
must they not have tinned? 	must I not have been tinning?
must you not have been tinning?
must he not have been tinning?
must we not have been tinning?
must you not have been tinning?
must they not have been tinning?