shall purchase
Regular verb: purchase - purchased- purchased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll purchase
you'll purchase
she'll purchase
we'll purchase
you'll purchase
they'll purchase 	I'll be purchasing
you'll be purchasing
she'll be purchasing
we'll be purchasing
you'll be purchasing
they'll be purchasing	I'll have purchased
you'll have purchased
she'll have purchased
we'll have purchased
you'll have purchased
they'll have purchased	I'll have been purchasing
you'll have been purchasing
she'll have been purchasing
we'll have been purchasing
you'll have been purchasing
they'll have been purchasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't purchase
you shan't purchase
she shan't purchase
we shan't purchase
you shan't purchase
they shan't purchase 	I shan't be purchasing
you shan't be purchasing
she shan't be purchasing
we shan't be purchasing
you shan't be purchasing
they shan't be purchasing	I shan't have purchased
you shan't have purchased
she shan't have purchased
we shan't have purchased
you shan't have purchased
they shan't have purchased	I shan't have been purchasing
you shan't have been purchasing
she shan't have been purchasing
we shan't have been purchasing
you shan't have been purchasing
they shan't have been purchasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I purchase?
shall you purchase?
shall she purchase?
shall we purchase?
shall you purchase?
shall they purchase? 	shall I be purchasing?
shall you be purchasing?
shall she be purchasing?
shall we be purchasing?
shall you be purchasing?
shall they be purchasing? 	shall I have purchased?
shall you have purchased?
shall she have purchased?
shall we have purchased?
shall you have purchased?
shall they have purchased? 	shall I have been purchasing?
shall you have been purchasing?
shall she have been purchasing?
shall we have been purchasing?
shall you have been purchasing?
shall they have been purchasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I purchase?
shan't you purchase?
shan't she purchase?
shan't we purchase?
shan't you purchase?
shan't they purchase? 	shan't I be purchasing?
shan't you be purchasing?
shan't she be purchasing?
shan't we be purchasing?
shan't you be purchasing?
shan't they be purchasing? 	shan't I have purchased?
shan't you have purchased?
shan't she have purchased?
shan't we have purchased?
shan't you have purchased?
shan't they have purchased? 	shan't I have been purchasing?
shan't you have been purchasing?
shan't she have been purchasing?
shan't we have been purchasing?
shan't you have been purchasing?
shan't they have been purchasing?