English verb conjugation
WILL ERR

Regular verb: err - erred - erred

Affirmation

Simple form	V-ing form
I will err you will err he will err we will err you will err they will err	I will be erring you will be erring he will be erring we will be erring you will be erring they will be erring
Perfect	V-ing perfect
I will have erred you will have erred he will have erred we will have erred you will have erred they will have erred	I will have been erring you will have been erring he will have been erring we will have been erring you will have been erring they will have been erring

Negation

Simple form	V-ing form
I will not err you will not err he will not err we will not err you will not err they will not err	I will not be erring you will not be erring he will not be erring we will not be erring you will not be erring they will not be erring
Perfect	V-ing perfect
I will not have erred you will not have erred he will not have erred we will not have erred you will not have erred they will not have erred	I will not have been erring you will not have been erring he will not have been erring we will not have been erring you will not have been erring they will not have been erring

Interrogative form

Simple form	V-ing form
will I err? will you err? will he err? will we err? will you err? will they err?	will I be erring? will you be erring? will he be erring? will we be erring? will you be erring? will they be erring?
Perfect	V-ing perfect
will I have erred? will you have erred? will he have erred? will we have erred? will you have erred? will they have erred?	will I have been erring? will you have been erring? will he have been erring? will we have been erring? will you have been erring? will they have been erring?

Interro-negative form

Simple form	V-ing form
will I not err? will you not err? will he not err? will we not err? will you not err? will they not err?	will I not be erring? will you not be erring? will he not be erring? will we not be erring? will you not be erring? will they not be erring?
Perfect	V-ing perfect
will I not have erred? will you not have erred? will he not have erred? will we not have erred? will you not have erred? will they not have erred?	will I not have been erring? will you not have been erring? will he not have been erring? will we not have been erring? will you not have been erring? will they not have been erring?