English verb conjugation
CAN CAULK

Regular verb: caulk - caulked - caulked

Affirmation

Simple form	V-ing form
I can caulk you can caulk he can caulk we can caulk you can caulk they can caulk	I can be caulking you can be caulking he can be caulking we can be caulking you can be caulking they can be caulking
Perfect	V-ing perfect
I can have caulked you can have caulked he can have caulked we can have caulked you can have caulked they can have caulked	I can have been caulking you can have been caulking he can have been caulking we can have been caulking you can have been caulking they can have been caulking

Negation

Simple form	V-ing form
I cannot caulk you cannot caulk he cannot caulk we cannot caulk you cannot caulk they cannot caulk	I cannot be caulking you cannot be caulking he cannot be caulking we cannot be caulking you cannot be caulking they cannot be caulking
Perfect	V-ing perfect
I cannot have caulked you cannot have caulked he cannot have caulked we cannot have caulked you cannot have caulked they cannot have caulked	I cannot have been caulking you cannot have been caulking he cannot have been caulking we cannot have been caulking you cannot have been caulking they cannot have been caulking

Interrogative form

Simple form	V-ing form
can I caulk? can you caulk? can he caulk? can we caulk? can you caulk? can they caulk?	can I be caulking? can you be caulking? can he be caulking? can we be caulking? can you be caulking? can they be caulking?
Perfect	V-ing perfect
can I have caulked? can you have caulked? can he have caulked? can we have caulked? can you have caulked? can they have caulked?	can I have been caulking? can you have been caulking? can he have been caulking? can we have been caulking? can you have been caulking? can they have been caulking?

Interro-negative form

Simple form	V-ing form
can I not caulk? can you not caulk? can he not caulk? can we not caulk? can you not caulk? can they not caulk?	can I not be caulking? can you not be caulking? can he not be caulking? can we not be caulking? can you not be caulking? can they not be caulking?
Perfect	V-ing perfect
can I not have caulked? can you not have caulked? can he not have caulked? can we not have caulked? can you not have caulked? can they not have caulked?	can I not have been caulking? can you not have been caulking? can he not have been caulking? can we not have been caulking? can you not have been caulking? can they not have been caulking?