will mass
Regular verb: mass - massed- massed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will mass
you will mass
she will mass
we will mass
you will mass
they will mass 	I will be massing
you will be massing
she will be massing
we will be massing
you will be massing
they will be massing	I will have massed
you will have massed
she will have massed
we will have massed
you will have massed
they will have massed	I will have been massing
you will have been massing
she will have been massing
we will have been massing
you will have been massing
they will have been massing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will not mass
you will not mass
she will not mass
we will not mass
you will not mass
they will not mass 	I will not be massing
you will not be massing
she will not be massing
we will not be massing
you will not be massing
they will not be massing	I will not have massed
you will not have massed
she will not have massed
we will not have massed
you will not have massed
they will not have massed	I will not have been massing
you will not have been massing
she will not have been massing
we will not have been massing
you will not have been massing
they will not have been massing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I mass?
will you mass?
will she mass?
will we mass?
will you mass?
will they mass? 	will I be massing?
will you be massing?
will she be massing?
will we be massing?
will you be massing?
will they be massing? 	will I have massed?
will you have massed?
will she have massed?
will we have massed?
will you have massed?
will they have massed? 	will I have been massing?
will you have been massing?
will she have been massing?
will we have been massing?
will you have been massing?
will they have been massing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I not mass?
will you not mass?
will she not mass?
will we not mass?
will you not mass?
will they not mass? 	will I not be massing?
will you not be massing?
will she not be massing?
will we not be massing?
will you not be massing?
will they not be massing? 	will I not have massed?
will you not have massed?
will she not have massed?
will we not have massed?
will you not have massed?
will they not have massed? 	will I not have been massing?
will you not have been massing?
will she not have been massing?
will we not have been massing?
will you not have been massing?
will they not have been massing?