can caulk
Regular verb: caulk - caulked- caulked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I can't caulk
you can't caulk
he can't caulk
we can't caulk
you can't caulk
they can't caulk 	I can't be caulking
you can't be caulking
he can't be caulking
we can't be caulking
you can't be caulking
they can't be caulking	I can't have caulked
you can't have caulked
he can't have caulked
we can't have caulked
you can't have caulked
they can't have caulked	I can't have been caulking
you can't have been caulking
he can't have been caulking
we can't have been caulking
you can't have been caulking
they can't have been caulking	

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