can drill
Regular verb: drill - drilled- drilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can drill
you can drill
he can drill
we can drill
you can drill
they can drill 	I can be drilling
you can be drilling
he can be drilling
we can be drilling
you can be drilling
they can be drilling	I can have drilled
you can have drilled
he can have drilled
we can have drilled
you can have drilled
they can have drilled	I can have been drilling
you can have been drilling
he can have been drilling
we can have been drilling
you can have been drilling
they can have been drilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't drill
you can't drill
he can't drill
we can't drill
you can't drill
they can't drill 	I can't be drilling
you can't be drilling
he can't be drilling
we can't be drilling
you can't be drilling
they can't be drilling	I can't have drilled
you can't have drilled
he can't have drilled
we can't have drilled
you can't have drilled
they can't have drilled	I can't have been drilling
you can't have been drilling
he can't have been drilling
we can't have been drilling
you can't have been drilling
they can't have been drilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I drill?
can you drill?
can he drill?
can we drill?
can you drill?
can they drill? 	can I be drilling?
can you be drilling?
can he be drilling?
can we be drilling?
can you be drilling?
can they be drilling? 	can I have drilled?
can you have drilled?
can he have drilled?
can we have drilled?
can you have drilled?
can they have drilled? 	can I have been drilling?
can you have been drilling?
can he have been drilling?
can we have been drilling?
can you have been drilling?
can they have been drilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I drill?
can't you drill?
can't he drill?
can't we drill?
can't you drill?
can't they drill? 	can't I be drilling?
can't you be drilling?
can't he be drilling?
can't we be drilling?
can't you be drilling?
can't they be drilling? 	can't I have drilled?
can't you have drilled?
can't he have drilled?
can't we have drilled?
can't you have drilled?
can't they have drilled? 	can't I have been drilling?
can't you have been drilling?
can't he have been drilling?
can't we have been drilling?
can't you have been drilling?
can't they have been drilling?