can predrill
Verbo regular: predrill - predrilled- predrilled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can predrill
you can predrill
he can predrill
we can predrill
you can predrill
they can predrill 	I can be predrilling
you can be predrilling
he can be predrilling
we can be predrilling
you can be predrilling
they can be predrilling	I can have predrilled
you can have predrilled
he can have predrilled
we can have predrilled
you can have predrilled
they can have predrilled	I can have been predrilling
you can have been predrilling
he can have been predrilling
we can have been predrilling
you can have been predrilling
they can have been predrilling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't predrill
you can't predrill
he can't predrill
we can't predrill
you can't predrill
they can't predrill 	I can't be predrilling
you can't be predrilling
he can't be predrilling
we can't be predrilling
you can't be predrilling
they can't be predrilling	I can't have predrilled
you can't have predrilled
he can't have predrilled
we can't have predrilled
you can't have predrilled
they can't have predrilled	I can't have been predrilling
you can't have been predrilling
he can't have been predrilling
we can't have been predrilling
you can't have been predrilling
they can't have been predrilling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I predrill?
can you predrill?
can he predrill?
can we predrill?
can you predrill?
can they predrill? 	can I be predrilling?
can you be predrilling?
can he be predrilling?
can we be predrilling?
can you be predrilling?
can they be predrilling? 	can I have predrilled?
can you have predrilled?
can he have predrilled?
can we have predrilled?
can you have predrilled?
can they have predrilled? 	can I have been predrilling?
can you have been predrilling?
can he have been predrilling?
can we have been predrilling?
can you have been predrilling?
can they have been predrilling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I predrill?
can't you predrill?
can't he predrill?
can't we predrill?
can't you predrill?
can't they predrill? 	can't I be predrilling?
can't you be predrilling?
can't he be predrilling?
can't we be predrilling?
can't you be predrilling?
can't they be predrilling? 	can't I have predrilled?
can't you have predrilled?
can't he have predrilled?
can't we have predrilled?
can't you have predrilled?
can't they have predrilled? 	can't I have been predrilling?
can't you have been predrilling?
can't he have been predrilling?
can't we have been predrilling?
can't you have been predrilling?
can't they have been predrilling?