shall attest
Regular verb: attest - attested- attested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll attest
you'll attest
he'll attest
we'll attest
you'll attest
they'll attest 	I'll be attesting
you'll be attesting
he'll be attesting
we'll be attesting
you'll be attesting
they'll be attesting	I'll have attested
you'll have attested
he'll have attested
we'll have attested
you'll have attested
they'll have attested	I'll have been attesting
you'll have been attesting
he'll have been attesting
we'll have been attesting
you'll have been attesting
they'll have been attesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't attest
you shan't attest
he shan't attest
we shan't attest
you shan't attest
they shan't attest 	I shan't be attesting
you shan't be attesting
he shan't be attesting
we shan't be attesting
you shan't be attesting
they shan't be attesting	I shan't have attested
you shan't have attested
he shan't have attested
we shan't have attested
you shan't have attested
they shan't have attested	I shan't have been attesting
you shan't have been attesting
he shan't have been attesting
we shan't have been attesting
you shan't have been attesting
they shan't have been attesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I attest?
shall you attest?
shall he attest?
shall we attest?
shall you attest?
shall they attest? 	shall I be attesting?
shall you be attesting?
shall he be attesting?
shall we be attesting?
shall you be attesting?
shall they be attesting? 	shall I have attested?
shall you have attested?
shall he have attested?
shall we have attested?
shall you have attested?
shall they have attested? 	shall I have been attesting?
shall you have been attesting?
shall he have been attesting?
shall we have been attesting?
shall you have been attesting?
shall they have been attesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I attest?
shan't you attest?
shan't he attest?
shan't we attest?
shan't you attest?
shan't they attest? 	shan't I be attesting?
shan't you be attesting?
shan't he be attesting?
shan't we be attesting?
shan't you be attesting?
shan't they be attesting? 	shan't I have attested?
shan't you have attested?
shan't he have attested?
shan't we have attested?
shan't you have attested?
shan't they have attested? 	shan't I have been attesting?
shan't you have been attesting?
shan't he have been attesting?
shan't we have been attesting?
shan't you have been attesting?
shan't they have been attesting?