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
she must glass
we must glass
you must glass
they must glass 	I must be glassing
you must be glassing
she must be glassing
we must be glassing
you must be glassing
they must be glassing	I must have glassed
you must have glassed
she 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
she 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
she 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
she 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
she 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
she 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 she glass?
must we glass?
must you glass?
must they glass? 	must I be glassing?
must you be glassing?
must she be glassing?
must we be glassing?
must you be glassing?
must they be glassing? 	must I have glassed?
must you have glassed?
must she 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 she 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 she 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 she 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 she 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 she not have been glassing?
must we not have been glassing?
must you not have been glassing?
must they not have been glassing?