can attend
Regular verb: attend - attended- attended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can attend
you can attend
he can attend
we can attend
you can attend
they can attend 	I can be attending
you can be attending
he can be attending
we can be attending
you can be attending
they can be attending	I can have attended
you can have attended
he can have attended
we can have attended
you can have attended
they can have attended	I can have been attending
you can have been attending
he can have been attending
we can have been attending
you can have been attending
they can have been attending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot attend
you cannot attend
he cannot attend
we cannot attend
you cannot attend
they cannot attend 	I cannot be attending
you cannot be attending
he cannot be attending
we cannot be attending
you cannot be attending
they cannot be attending	I cannot have attended
you cannot have attended
he cannot have attended
we cannot have attended
you cannot have attended
they cannot have attended	I cannot have been attending
you cannot have been attending
he cannot have been attending
we cannot have been attending
you cannot have been attending
they cannot have been attending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I attend?
can you attend?
can he attend?
can we attend?
can you attend?
can they attend? 	can I be attending?
can you be attending?
can he be attending?
can we be attending?
can you be attending?
can they be attending? 	can I have attended?
can you have attended?
can he have attended?
can we have attended?
can you have attended?
can they have attended? 	can I have been attending?
can you have been attending?
can he have been attending?
can we have been attending?
can you have been attending?
can they have been attending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not attend?
can you not attend?
can he not attend?
can we not attend?
can you not attend?
can they not attend? 	can I not be attending?
can you not be attending?
can he not be attending?
can we not be attending?
can you not be attending?
can they not be attending? 	can I not have attended?
can you not have attended?
can he not have attended?
can we not have attended?
can you not have attended?
can they not have attended? 	can I not have been attending?
can you not have been attending?
can he not have been attending?
can we not have been attending?
can you not have been attending?
can they not have been attending?