English verb conjugation
SHOULD NIBBLE

Regular verb: nibble - nibbled - nibbled

Affirmation

Simple form	V-ing form
I should nibble you should nibble he should nibble we should nibble you should nibble they should nibble	I should be nibbling you should be nibbling he should be nibbling we should be nibbling you should be nibbling they should be nibbling
Perfect	V-ing perfect
I should have nibbled you should have nibbled he should have nibbled we should have nibbled you should have nibbled they should have nibbled	I should have been nibbling you should have been nibbling he should have been nibbling we should have been nibbling you should have been nibbling they should have been nibbling

Negation

Simple form	V-ing form
I should not nibble you should not nibble he should not nibble we should not nibble you should not nibble they should not nibble	I should not be nibbling you should not be nibbling he should not be nibbling we should not be nibbling you should not be nibbling they should not be nibbling
Perfect	V-ing perfect
I should not have nibbled you should not have nibbled he should not have nibbled we should not have nibbled you should not have nibbled they should not have nibbled	I should not have been nibbling you should not have been nibbling he should not have been nibbling we should not have been nibbling you should not have been nibbling they should not have been nibbling

Interrogative form

Simple form	V-ing form
should I nibble? should you nibble? should he nibble? should we nibble? should you nibble? should they nibble?	should I be nibbling? should you be nibbling? should he be nibbling? should we be nibbling? should you be nibbling? should they be nibbling?
Perfect	V-ing perfect
should I have nibbled? should you have nibbled? should he have nibbled? should we have nibbled? should you have nibbled? should they have nibbled?	should I have been nibbling? should you have been nibbling? should he have been nibbling? should we have been nibbling? should you have been nibbling? should they have been nibbling?

Interro-negative form

Simple form	V-ing form
should I not nibble? should you not nibble? should he not nibble? should we not nibble? should you not nibble? should they not nibble?	should I not be nibbling? should you not be nibbling? should he not be nibbling? should we not be nibbling? should you not be nibbling? should they not be nibbling?
Perfect	V-ing perfect
should I not have nibbled? should you not have nibbled? should he not have nibbled? should we not have nibbled? should you not have nibbled? should they not have nibbled?	should I not have been nibbling? should you not have been nibbling? should he not have been nibbling? should we not have been nibbling? should you not have been nibbling? should they not have been nibbling?