must tatter
Verbo regular: tatter - tattered- tattered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must tatter
you must tatter
he must tatter
we must tatter
you must tatter
they must tatter 	I must be tattering
you must be tattering
he must be tattering
we must be tattering
you must be tattering
they must be tattering	I must have tattered
you must have tattered
he must have tattered
we must have tattered
you must have tattered
they must have tattered	I must have been tattering
you must have been tattering
he must have been tattering
we must have been tattering
you must have been tattering
they must have been tattering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't tatter
you mustn't tatter
he mustn't tatter
we mustn't tatter
you mustn't tatter
they mustn't tatter 	I mustn't be tattering
you mustn't be tattering
he mustn't be tattering
we mustn't be tattering
you mustn't be tattering
they mustn't be tattering	I mustn't have tattered
you mustn't have tattered
he mustn't have tattered
we mustn't have tattered
you mustn't have tattered
they mustn't have tattered	I mustn't have been tattering
you mustn't have been tattering
he mustn't have been tattering
we mustn't have been tattering
you mustn't have been tattering
they mustn't have been tattering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I tatter?
must you tatter?
must he tatter?
must we tatter?
must you tatter?
must they tatter? 	must I be tattering?
must you be tattering?
must he be tattering?
must we be tattering?
must you be tattering?
must they be tattering? 	must I have tattered?
must you have tattered?
must he have tattered?
must we have tattered?
must you have tattered?
must they have tattered? 	must I have been tattering?
must you have been tattering?
must he have been tattering?
must we have been tattering?
must you have been tattering?
must they have been tattering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I tatter?
mustn't you tatter?
mustn't he tatter?
mustn't we tatter?
mustn't you tatter?
mustn't they tatter? 	mustn't I be tattering?
mustn't you be tattering?
mustn't he be tattering?
mustn't we be tattering?
mustn't you be tattering?
mustn't they be tattering? 	mustn't I have tattered?
mustn't you have tattered?
mustn't he have tattered?
mustn't we have tattered?
mustn't you have tattered?
mustn't they have tattered? 	mustn't I have been tattering?
mustn't you have been tattering?
mustn't he have been tattering?
mustn't we have been tattering?
mustn't you have been tattering?
mustn't they have been tattering?