must glass
Verbe régulier : glass - glassed- glassed
Traduction française : vitrer - mettre sous verre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must glass
you must glass
he must glass
we must glass
you must glass
they must glass 	I must be glassing
you must be glassing
he must be glassing
we must be glassing
you must be glassing
they must be glassing	I must have glassed
you must have glassed
he must have glassed
we must have glassed
you must have glassed
they must have glassed	I must have been glassing
you must have been glassing
he must have been glassing
we must have been glassing
you must have been glassing
they must have been glassing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not glass
you must not glass
he must not glass
we must not glass
you must not glass
they must not glass 	I must not be glassing
you must not be glassing
he must not be glassing
we must not be glassing
you must not be glassing
they must not be glassing	I must not have glassed
you must not have glassed
he must not have glassed
we must not have glassed
you must not have glassed
they must not have glassed	I must not have been glassing
you must not have been glassing
he must not have been glassing
we must not have been glassing
you must not have been glassing
they must not have been glassing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I glass?
must you glass?
must he glass?
must we glass?
must you glass?
must they glass? 	must I be glassing?
must you be glassing?
must he be glassing?
must we be glassing?
must you be glassing?
must they be glassing? 	must I have glassed?
must you have glassed?
must he have glassed?
must we have glassed?
must you have glassed?
must they have glassed? 	must I have been glassing?
must you have been glassing?
must he have been glassing?
must we have been glassing?
must you have been glassing?
must they have been glassing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not glass?
must you not glass?
must he not glass?
must we not glass?
must you not glass?
must they not glass? 	must I not be glassing?
must you not be glassing?
must he not be glassing?
must we not be glassing?
must you not be glassing?
must they not be glassing? 	must I not have glassed?
must you not have glassed?
must he not have glassed?
must we not have glassed?
must you not have glassed?
must they not have glassed? 	must I not have been glassing?
must you not have been glassing?
must he not have been glassing?
must we not have been glassing?
must you not have been glassing?
must they not have been glassing?