English verb conjugation
CAN INTERFOLD

Regular verb: interfold - interfolded - interfolded

Affirmation

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

Negation

Simple form	V-ing form
I can't interfold you can't interfold he can't interfold we can't interfold you can't interfold they can't interfold	I can't be interfolding you can't be interfolding he can't be interfolding we can't be interfolding you can't be interfolding they can't be interfolding
Perfect	V-ing perfect
I can't have interfolded you can't have interfolded he can't have interfolded we can't have interfolded you can't have interfolded they can't have interfolded	I can't have been interfolding you can't have been interfolding he can't have been interfolding we can't have been interfolding you can't have been interfolding they can't have been interfolding

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I interfold? can't you interfold? can't he interfold? can't we interfold? can't you interfold? can't they interfold?	can't I be interfolding? can't you be interfolding? can't he be interfolding? can't we be interfolding? can't you be interfolding? can't they be interfolding?
Perfect	V-ing perfect
can't I have interfolded? can't you have interfolded? can't he have interfolded? can't we have interfolded? can't you have interfolded? can't they have interfolded?	can't I have been interfolding? can't you have been interfolding? can't he have been interfolding? can't we have been interfolding? can't you have been interfolding? can't they have been interfolding?