must append
Verbo regular: append - appended- appended

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must append
you must append
he must append
we must append
you must append
they must append 	I must be appending
you must be appending
he must be appending
we must be appending
you must be appending
they must be appending	I must have appended
you must have appended
he must have appended
we must have appended
you must have appended
they must have appended	I must have been appending
you must have been appending
he must have been appending
we must have been appending
you must have been appending
they must have been appending	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't append
you mustn't append
he mustn't append
we mustn't append
you mustn't append
they mustn't append 	I mustn't be appending
you mustn't be appending
he mustn't be appending
we mustn't be appending
you mustn't be appending
they mustn't be appending	I mustn't have appended
you mustn't have appended
he mustn't have appended
we mustn't have appended
you mustn't have appended
they mustn't have appended	I mustn't have been appending
you mustn't have been appending
he mustn't have been appending
we mustn't have been appending
you mustn't have been appending
they mustn't have been appending	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I append?
must you append?
must he append?
must we append?
must you append?
must they append? 	must I be appending?
must you be appending?
must he be appending?
must we be appending?
must you be appending?
must they be appending? 	must I have appended?
must you have appended?
must he have appended?
must we have appended?
must you have appended?
must they have appended? 	must I have been appending?
must you have been appending?
must he have been appending?
must we have been appending?
must you have been appending?
must they have been appending? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I append?
mustn't you append?
mustn't he append?
mustn't we append?
mustn't you append?
mustn't they append? 	mustn't I be appending?
mustn't you be appending?
mustn't he be appending?
mustn't we be appending?
mustn't you be appending?
mustn't they be appending? 	mustn't I have appended?
mustn't you have appended?
mustn't he have appended?
mustn't we have appended?
mustn't you have appended?
mustn't they have appended? 	mustn't I have been appending?
mustn't you have been appending?
mustn't he have been appending?
mustn't we have been appending?
mustn't you have been appending?
mustn't they have been appending?