shall authenticate
Regular verb: authenticate - authenticated- authenticated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall authenticate
you shall authenticate
he shall authenticate
we shall authenticate
you shall authenticate
they shall authenticate 	I shall be authenticating
you shall be authenticating
he shall be authenticating
we shall be authenticating
you shall be authenticating
they shall be authenticating	I shall have authenticated
you shall have authenticated
he shall have authenticated
we shall have authenticated
you shall have authenticated
they shall have authenticated	I shall have been authenticating
you shall have been authenticating
he shall have been authenticating
we shall have been authenticating
you shall have been authenticating
they shall have been authenticating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not authenticate
you shall not authenticate
he shall not authenticate
we shall not authenticate
you shall not authenticate
they shall not authenticate 	I shall not be authenticating
you shall not be authenticating
he shall not be authenticating
we shall not be authenticating
you shall not be authenticating
they shall not be authenticating	I shall not have authenticated
you shall not have authenticated
he shall not have authenticated
we shall not have authenticated
you shall not have authenticated
they shall not have authenticated	I shall not have been authenticating
you shall not have been authenticating
he shall not have been authenticating
we shall not have been authenticating
you shall not have been authenticating
they shall not have been authenticating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I authenticate?
shall you authenticate?
shall he authenticate?
shall we authenticate?
shall you authenticate?
shall they authenticate? 	shall I be authenticating?
shall you be authenticating?
shall he be authenticating?
shall we be authenticating?
shall you be authenticating?
shall they be authenticating? 	shall I have authenticated?
shall you have authenticated?
shall he have authenticated?
shall we have authenticated?
shall you have authenticated?
shall they have authenticated? 	shall I have been authenticating?
shall you have been authenticating?
shall he have been authenticating?
shall we have been authenticating?
shall you have been authenticating?
shall they have been authenticating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not authenticate?
shall you not authenticate?
shall he not authenticate?
shall we not authenticate?
shall you not authenticate?
shall they not authenticate? 	shall I not be authenticating?
shall you not be authenticating?
shall he not be authenticating?
shall we not be authenticating?
shall you not be authenticating?
shall they not be authenticating? 	shall I not have authenticated?
shall you not have authenticated?
shall he not have authenticated?
shall we not have authenticated?
shall you not have authenticated?
shall they not have authenticated? 	shall I not have been authenticating?
shall you not have been authenticating?
shall he not have been authenticating?
shall we not have been authenticating?
shall you not have been authenticating?
shall they not have been authenticating?