shall err
Regular verb: err - erred- erred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall err
you shall err
she shall err
we shall err
you shall err
they shall err 	I shall be erring
you shall be erring
she shall be erring
we shall be erring
you shall be erring
they shall be erring	I shall have erred
you shall have erred
she shall have erred
we shall have erred
you shall have erred
they shall have erred	I shall have been erring
you shall have been erring
she shall have been erring
we shall have been erring
you shall have been erring
they shall have been erring	

Negation 	
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I shall not err
you shall not err
she shall not err
we shall not err
you shall not err
they shall not err 	I shall not be erring
you shall not be erring
she shall not be erring
we shall not be erring
you shall not be erring
they shall not be erring	I shall not have erred
you shall not have erred
she shall not have erred
we shall not have erred
you shall not have erred
they shall not have erred	I shall not have been erring
you shall not have been erring
she shall not have been erring
we shall not have been erring
you shall not have been erring
they shall not have been erring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I err?
shall you err?
shall she err?
shall we err?
shall you err?
shall they err? 	shall I be erring?
shall you be erring?
shall she be erring?
shall we be erring?
shall you be erring?
shall they be erring? 	shall I have erred?
shall you have erred?
shall she have erred?
shall we have erred?
shall you have erred?
shall they have erred? 	shall I have been erring?
shall you have been erring?
shall she have been erring?
shall we have been erring?
shall you have been erring?
shall they have been erring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not err?
shall you not err?
shall she not err?
shall we not err?
shall you not err?
shall they not err? 	shall I not be erring?
shall you not be erring?
shall she not be erring?
shall we not be erring?
shall you not be erring?
shall they not be erring? 	shall I not have erred?
shall you not have erred?
shall she not have erred?
shall we not have erred?
shall you not have erred?
shall they not have erred? 	shall I not have been erring?
shall you not have been erring?
shall she not have been erring?
shall we not have been erring?
shall you not have been erring?
shall they not have been erring?