English verb conjugation
SHOULD INTERFOLD

Regular verb: interfold - interfolded - interfolded

Affirmation

Simple form	V-ing form
I should interfold you should interfold he should interfold we should interfold you should interfold they should interfold	I should be interfolding you should be interfolding he should be interfolding we should be interfolding you should be interfolding they should be interfolding
Perfect	V-ing perfect
I should have interfolded you should have interfolded he should have interfolded we should have interfolded you should have interfolded they should have interfolded	I should have been interfolding you should have been interfolding he should have been interfolding we should have been interfolding you should have been interfolding they should have been interfolding

Negation

Simple form	V-ing form
I should not interfold you should not interfold he should not interfold we should not interfold you should not interfold they should not interfold	I should not be interfolding you should not be interfolding he should not be interfolding we should not be interfolding you should not be interfolding they should not be interfolding
Perfect	V-ing perfect
I should not have interfolded you should not have interfolded he should not have interfolded we should not have interfolded you should not have interfolded they should not have interfolded	I should not have been interfolding you should not have been interfolding he should not have been interfolding we should not have been interfolding you should not have been interfolding they should not have been interfolding

Interrogative form

Simple form	V-ing form
should I interfold? should you interfold? should he interfold? should we interfold? should you interfold? should they interfold?	should I be interfolding? should you be interfolding? should he be interfolding? should we be interfolding? should you be interfolding? should they be interfolding?
Perfect	V-ing perfect
should I have interfolded? should you have interfolded? should he have interfolded? should we have interfolded? should you have interfolded? should they have interfolded?	should I have been interfolding? should you have been interfolding? should he have been interfolding? should we have been interfolding? should you have been interfolding? should they have been interfolding?

Interro-negative form

Simple form	V-ing form
should I not interfold? should you not interfold? should he not interfold? should we not interfold? should you not interfold? should they not interfold?	should I not be interfolding? should you not be interfolding? should he not be interfolding? should we not be interfolding? should you not be interfolding? should they not be interfolding?
Perfect	V-ing perfect
should I not have interfolded? should you not have interfolded? should he not have interfolded? should we not have interfolded? should you not have interfolded? should they not have interfolded?	should I not have been interfolding? should you not have been interfolding? should he not have been interfolding? should we not have been interfolding? should you not have been interfolding? should they not have been interfolding?