can scour
Regular verb: scour - scoured- scoured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can scour
you can scour
he can scour
we can scour
you can scour
they can scour 	I can be scouring
you can be scouring
he can be scouring
we can be scouring
you can be scouring
they can be scouring	I can have scoured
you can have scoured
he can have scoured
we can have scoured
you can have scoured
they can have scoured	I can have been scouring
you can have been scouring
he can have been scouring
we can have been scouring
you can have been scouring
they can have been scouring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot scour
you cannot scour
he cannot scour
we cannot scour
you cannot scour
they cannot scour 	I cannot be scouring
you cannot be scouring
he cannot be scouring
we cannot be scouring
you cannot be scouring
they cannot be scouring	I cannot have scoured
you cannot have scoured
he cannot have scoured
we cannot have scoured
you cannot have scoured
they cannot have scoured	I cannot have been scouring
you cannot have been scouring
he cannot have been scouring
we cannot have been scouring
you cannot have been scouring
they cannot have been scouring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I scour?
can you scour?
can he scour?
can we scour?
can you scour?
can they scour? 	can I be scouring?
can you be scouring?
can he be scouring?
can we be scouring?
can you be scouring?
can they be scouring? 	can I have scoured?
can you have scoured?
can he have scoured?
can we have scoured?
can you have scoured?
can they have scoured? 	can I have been scouring?
can you have been scouring?
can he have been scouring?
can we have been scouring?
can you have been scouring?
can they have been scouring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not scour?
can you not scour?
can he not scour?
can we not scour?
can you not scour?
can they not scour? 	can I not be scouring?
can you not be scouring?
can he not be scouring?
can we not be scouring?
can you not be scouring?
can they not be scouring? 	can I not have scoured?
can you not have scoured?
can he not have scoured?
can we not have scoured?
can you not have scoured?
can they not have scoured? 	can I not have been scouring?
can you not have been scouring?
can he not have been scouring?
can we not have been scouring?
can you not have been scouring?
can they not have been scouring?