can order
Regular verb: order - ordered- ordered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can order
you can order
he can order
we can order
you can order
they can order 	I can be ordering
you can be ordering
he can be ordering
we can be ordering
you can be ordering
they can be ordering	I can have ordered
you can have ordered
he can have ordered
we can have ordered
you can have ordered
they can have ordered	I can have been ordering
you can have been ordering
he can have been ordering
we can have been ordering
you can have been ordering
they can have been ordering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't order
you can't order
he can't order
we can't order
you can't order
they can't order 	I can't be ordering
you can't be ordering
he can't be ordering
we can't be ordering
you can't be ordering
they can't be ordering	I can't have ordered
you can't have ordered
he can't have ordered
we can't have ordered
you can't have ordered
they can't have ordered	I can't have been ordering
you can't have been ordering
he can't have been ordering
we can't have been ordering
you can't have been ordering
they can't have been ordering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I order?
can you order?
can he order?
can we order?
can you order?
can they order? 	can I be ordering?
can you be ordering?
can he be ordering?
can we be ordering?
can you be ordering?
can they be ordering? 	can I have ordered?
can you have ordered?
can he have ordered?
can we have ordered?
can you have ordered?
can they have ordered? 	can I have been ordering?
can you have been ordering?
can he have been ordering?
can we have been ordering?
can you have been ordering?
can they have been ordering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I order?
can't you order?
can't he order?
can't we order?
can't you order?
can't they order? 	can't I be ordering?
can't you be ordering?
can't he be ordering?
can't we be ordering?
can't you be ordering?
can't they be ordering? 	can't I have ordered?
can't you have ordered?
can't he have ordered?
can't we have ordered?
can't you have ordered?
can't they have ordered? 	can't I have been ordering?
can't you have been ordering?
can't he have been ordering?
can't we have been ordering?
can't you have been ordering?
can't they have been ordering?