shall yackety-yak
Regular verb: yackety-yak - yackety-yaked- yackety-yaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll yackety-yak
you'll yackety-yak
he'll yackety-yak
we'll yackety-yak
you'll yackety-yak
they'll yackety-yak 	I'll be yackety-yaking
you'll be yackety-yaking
he'll be yackety-yaking
we'll be yackety-yaking
you'll be yackety-yaking
they'll be yackety-yaking	I'll have yackety-yaked
you'll have yackety-yaked
he'll have yackety-yaked
we'll have yackety-yaked
you'll have yackety-yaked
they'll have yackety-yaked	I'll have been yackety-yaking
you'll have been yackety-yaking
he'll have been yackety-yaking
we'll have been yackety-yaking
you'll have been yackety-yaking
they'll have been yackety-yaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't yackety-yak
you shan't yackety-yak
he shan't yackety-yak
we shan't yackety-yak
you shan't yackety-yak
they shan't yackety-yak 	I shan't be yackety-yaking
you shan't be yackety-yaking
he shan't be yackety-yaking
we shan't be yackety-yaking
you shan't be yackety-yaking
they shan't be yackety-yaking	I shan't have yackety-yaked
you shan't have yackety-yaked
he shan't have yackety-yaked
we shan't have yackety-yaked
you shan't have yackety-yaked
they shan't have yackety-yaked	I shan't have been yackety-yaking
you shan't have been yackety-yaking
he shan't have been yackety-yaking
we shan't have been yackety-yaking
you shan't have been yackety-yaking
they shan't have been yackety-yaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I yackety-yak?
shall you yackety-yak?
shall he yackety-yak?
shall we yackety-yak?
shall you yackety-yak?
shall they yackety-yak? 	shall I be yackety-yaking?
shall you be yackety-yaking?
shall he be yackety-yaking?
shall we be yackety-yaking?
shall you be yackety-yaking?
shall they be yackety-yaking? 	shall I have yackety-yaked?
shall you have yackety-yaked?
shall he have yackety-yaked?
shall we have yackety-yaked?
shall you have yackety-yaked?
shall they have yackety-yaked? 	shall I have been yackety-yaking?
shall you have been yackety-yaking?
shall he have been yackety-yaking?
shall we have been yackety-yaking?
shall you have been yackety-yaking?
shall they have been yackety-yaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I yackety-yak?
shan't you yackety-yak?
shan't he yackety-yak?
shan't we yackety-yak?
shan't you yackety-yak?
shan't they yackety-yak? 	shan't I be yackety-yaking?
shan't you be yackety-yaking?
shan't he be yackety-yaking?
shan't we be yackety-yaking?
shan't you be yackety-yaking?
shan't they be yackety-yaking? 	shan't I have yackety-yaked?
shan't you have yackety-yaked?
shan't he have yackety-yaked?
shan't we have yackety-yaked?
shan't you have yackety-yaked?
shan't they have yackety-yaked? 	shan't I have been yackety-yaking?
shan't you have been yackety-yaking?
shan't he have been yackety-yaking?
shan't we have been yackety-yaking?
shan't you have been yackety-yaking?
shan't they have been yackety-yaking?