must tweet
Verbo regular: tweet - tweeted- tweeted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tweet
you must tweet
he must tweet
we must tweet
you must tweet
they must tweet 	I must be tweeting
you must be tweeting
he must be tweeting
we must be tweeting
you must be tweeting
they must be tweeting	I must have tweeted
you must have tweeted
he must have tweeted
we must have tweeted
you must have tweeted
they must have tweeted	I must have been tweeting
you must have been tweeting
he must have been tweeting
we must have been tweeting
you must have been tweeting
they must have been tweeting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not tweet
you must not tweet
he must not tweet
we must not tweet
you must not tweet
they must not tweet 	I must not be tweeting
you must not be tweeting
he must not be tweeting
we must not be tweeting
you must not be tweeting
they must not be tweeting	I must not have tweeted
you must not have tweeted
he must not have tweeted
we must not have tweeted
you must not have tweeted
they must not have tweeted	I must not have been tweeting
you must not have been tweeting
he must not have been tweeting
we must not have been tweeting
you must not have been tweeting
they must not have been tweeting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tweet?
must you tweet?
must he tweet?
must we tweet?
must you tweet?
must they tweet? 	must I be tweeting?
must you be tweeting?
must he be tweeting?
must we be tweeting?
must you be tweeting?
must they be tweeting? 	must I have tweeted?
must you have tweeted?
must he have tweeted?
must we have tweeted?
must you have tweeted?
must they have tweeted? 	must I have been tweeting?
must you have been tweeting?
must he have been tweeting?
must we have been tweeting?
must you have been tweeting?
must they have been tweeting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not tweet?
must you not tweet?
must he not tweet?
must we not tweet?
must you not tweet?
must they not tweet? 	must I not be tweeting?
must you not be tweeting?
must he not be tweeting?
must we not be tweeting?
must you not be tweeting?
must they not be tweeting? 	must I not have tweeted?
must you not have tweeted?
must he not have tweeted?
must we not have tweeted?
must you not have tweeted?
must they not have tweeted? 	must I not have been tweeting?
must you not have been tweeting?
must he not have been tweeting?
must we not have been tweeting?
must you not have been tweeting?
must they not have been tweeting?