can uncover
Regular verb: uncover - uncovered- uncovered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can uncover
you can uncover
he can uncover
we can uncover
you can uncover
they can uncover 	I can be uncovering
you can be uncovering
he can be uncovering
we can be uncovering
you can be uncovering
they can be uncovering	I can have uncovered
you can have uncovered
he can have uncovered
we can have uncovered
you can have uncovered
they can have uncovered	I can have been uncovering
you can have been uncovering
he can have been uncovering
we can have been uncovering
you can have been uncovering
they can have been uncovering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't uncover
you can't uncover
he can't uncover
we can't uncover
you can't uncover
they can't uncover 	I can't be uncovering
you can't be uncovering
he can't be uncovering
we can't be uncovering
you can't be uncovering
they can't be uncovering	I can't have uncovered
you can't have uncovered
he can't have uncovered
we can't have uncovered
you can't have uncovered
they can't have uncovered	I can't have been uncovering
you can't have been uncovering
he can't have been uncovering
we can't have been uncovering
you can't have been uncovering
they can't have been uncovering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I uncover?
can you uncover?
can he uncover?
can we uncover?
can you uncover?
can they uncover? 	can I be uncovering?
can you be uncovering?
can he be uncovering?
can we be uncovering?
can you be uncovering?
can they be uncovering? 	can I have uncovered?
can you have uncovered?
can he have uncovered?
can we have uncovered?
can you have uncovered?
can they have uncovered? 	can I have been uncovering?
can you have been uncovering?
can he have been uncovering?
can we have been uncovering?
can you have been uncovering?
can they have been uncovering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I uncover?
can't you uncover?
can't he uncover?
can't we uncover?
can't you uncover?
can't they uncover? 	can't I be uncovering?
can't you be uncovering?
can't he be uncovering?
can't we be uncovering?
can't you be uncovering?
can't they be uncovering? 	can't I have uncovered?
can't you have uncovered?
can't he have uncovered?
can't we have uncovered?
can't you have uncovered?
can't they have uncovered? 	can't I have been uncovering?
can't you have been uncovering?
can't he have been uncovering?
can't we have been uncovering?
can't you have been uncovering?
can't they have been uncovering?