must fine-tune
Verbo regular: fine-tune - fine-tuned- fine-tuned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must fine-tune
you must fine-tune
he must fine-tune
we must fine-tune
you must fine-tune
they must fine-tune 	I must be fine-tuning
you must be fine-tuning
he must be fine-tuning
we must be fine-tuning
you must be fine-tuning
they must be fine-tuning	I must have fine-tuned
you must have fine-tuned
he must have fine-tuned
we must have fine-tuned
you must have fine-tuned
they must have fine-tuned	I must have been fine-tuning
you must have been fine-tuning
he must have been fine-tuning
we must have been fine-tuning
you must have been fine-tuning
they must have been fine-tuning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not fine-tune
you must not fine-tune
he must not fine-tune
we must not fine-tune
you must not fine-tune
they must not fine-tune 	I must not be fine-tuning
you must not be fine-tuning
he must not be fine-tuning
we must not be fine-tuning
you must not be fine-tuning
they must not be fine-tuning	I must not have fine-tuned
you must not have fine-tuned
he must not have fine-tuned
we must not have fine-tuned
you must not have fine-tuned
they must not have fine-tuned	I must not have been fine-tuning
you must not have been fine-tuning
he must not have been fine-tuning
we must not have been fine-tuning
you must not have been fine-tuning
they must not have been fine-tuning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I fine-tune?
must you fine-tune?
must he fine-tune?
must we fine-tune?
must you fine-tune?
must they fine-tune? 	must I be fine-tuning?
must you be fine-tuning?
must he be fine-tuning?
must we be fine-tuning?
must you be fine-tuning?
must they be fine-tuning? 	must I have fine-tuned?
must you have fine-tuned?
must he have fine-tuned?
must we have fine-tuned?
must you have fine-tuned?
must they have fine-tuned? 	must I have been fine-tuning?
must you have been fine-tuning?
must he have been fine-tuning?
must we have been fine-tuning?
must you have been fine-tuning?
must they have been fine-tuning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not fine-tune?
must you not fine-tune?
must he not fine-tune?
must we not fine-tune?
must you not fine-tune?
must they not fine-tune? 	must I not be fine-tuning?
must you not be fine-tuning?
must he not be fine-tuning?
must we not be fine-tuning?
must you not be fine-tuning?
must they not be fine-tuning? 	must I not have fine-tuned?
must you not have fine-tuned?
must he not have fine-tuned?
must we not have fine-tuned?
must you not have fine-tuned?
must they not have fine-tuned? 	must I not have been fine-tuning?
must you not have been fine-tuning?
must he not have been fine-tuning?
must we not have been fine-tuning?
must you not have been fine-tuning?
must they not have been fine-tuning?