shall subtract
Regular verb: subtract - subtracted- subtracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll subtract
you'll subtract
she'll subtract
we'll subtract
you'll subtract
they'll subtract 	I'll be subtracting
you'll be subtracting
she'll be subtracting
we'll be subtracting
you'll be subtracting
they'll be subtracting	I'll have subtracted
you'll have subtracted
she'll have subtracted
we'll have subtracted
you'll have subtracted
they'll have subtracted	I'll have been subtracting
you'll have been subtracting
she'll have been subtracting
we'll have been subtracting
you'll have been subtracting
they'll have been subtracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't subtract
you shan't subtract
she shan't subtract
we shan't subtract
you shan't subtract
they shan't subtract 	I shan't be subtracting
you shan't be subtracting
she shan't be subtracting
we shan't be subtracting
you shan't be subtracting
they shan't be subtracting	I shan't have subtracted
you shan't have subtracted
she shan't have subtracted
we shan't have subtracted
you shan't have subtracted
they shan't have subtracted	I shan't have been subtracting
you shan't have been subtracting
she shan't have been subtracting
we shan't have been subtracting
you shan't have been subtracting
they shan't have been subtracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I subtract?
shall you subtract?
shall she subtract?
shall we subtract?
shall you subtract?
shall they subtract? 	shall I be subtracting?
shall you be subtracting?
shall she be subtracting?
shall we be subtracting?
shall you be subtracting?
shall they be subtracting? 	shall I have subtracted?
shall you have subtracted?
shall she have subtracted?
shall we have subtracted?
shall you have subtracted?
shall they have subtracted? 	shall I have been subtracting?
shall you have been subtracting?
shall she have been subtracting?
shall we have been subtracting?
shall you have been subtracting?
shall they have been subtracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I subtract?
shan't you subtract?
shan't she subtract?
shan't we subtract?
shan't you subtract?
shan't they subtract? 	shan't I be subtracting?
shan't you be subtracting?
shan't she be subtracting?
shan't we be subtracting?
shan't you be subtracting?
shan't they be subtracting? 	shan't I have subtracted?
shan't you have subtracted?
shan't she have subtracted?
shan't we have subtracted?
shan't you have subtracted?
shan't they have subtracted? 	shan't I have been subtracting?
shan't you have been subtracting?
shan't she have been subtracting?
shan't we have been subtracting?
shan't you have been subtracting?
shan't they have been subtracting?