can detain
Regular verb: detain - detained- detained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can detain
you can detain
he can detain
we can detain
you can detain
they can detain 	I can be detaining
you can be detaining
he can be detaining
we can be detaining
you can be detaining
they can be detaining	I can have detained
you can have detained
he can have detained
we can have detained
you can have detained
they can have detained	I can have been detaining
you can have been detaining
he can have been detaining
we can have been detaining
you can have been detaining
they can have been detaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot detain
you cannot detain
he cannot detain
we cannot detain
you cannot detain
they cannot detain 	I cannot be detaining
you cannot be detaining
he cannot be detaining
we cannot be detaining
you cannot be detaining
they cannot be detaining	I cannot have detained
you cannot have detained
he cannot have detained
we cannot have detained
you cannot have detained
they cannot have detained	I cannot have been detaining
you cannot have been detaining
he cannot have been detaining
we cannot have been detaining
you cannot have been detaining
they cannot have been detaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I detain?
can you detain?
can he detain?
can we detain?
can you detain?
can they detain? 	can I be detaining?
can you be detaining?
can he be detaining?
can we be detaining?
can you be detaining?
can they be detaining? 	can I have detained?
can you have detained?
can he have detained?
can we have detained?
can you have detained?
can they have detained? 	can I have been detaining?
can you have been detaining?
can he have been detaining?
can we have been detaining?
can you have been detaining?
can they have been detaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not detain?
can you not detain?
can he not detain?
can we not detain?
can you not detain?
can they not detain? 	can I not be detaining?
can you not be detaining?
can he not be detaining?
can we not be detaining?
can you not be detaining?
can they not be detaining? 	can I not have detained?
can you not have detained?
can he not have detained?
can we not have detained?
can you not have detained?
can they not have detained? 	can I not have been detaining?
can you not have been detaining?
can he not have been detaining?
can we not have been detaining?
can you not have been detaining?
can they not have been detaining?