can interrogate
Regular verb: interrogate - interrogated- interrogated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can interrogate
you can interrogate
she can interrogate
we can interrogate
you can interrogate
they can interrogate 	I can be interrogating
you can be interrogating
she can be interrogating
we can be interrogating
you can be interrogating
they can be interrogating	I can have interrogated
you can have interrogated
she can have interrogated
we can have interrogated
you can have interrogated
they can have interrogated	I can have been interrogating
you can have been interrogating
she can have been interrogating
we can have been interrogating
you can have been interrogating
they can have been interrogating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't interrogate
you can't interrogate
she can't interrogate
we can't interrogate
you can't interrogate
they can't interrogate 	I can't be interrogating
you can't be interrogating
she can't be interrogating
we can't be interrogating
you can't be interrogating
they can't be interrogating	I can't have interrogated
you can't have interrogated
she can't have interrogated
we can't have interrogated
you can't have interrogated
they can't have interrogated	I can't have been interrogating
you can't have been interrogating
she can't have been interrogating
we can't have been interrogating
you can't have been interrogating
they can't have been interrogating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I interrogate?
can you interrogate?
can she interrogate?
can we interrogate?
can you interrogate?
can they interrogate? 	can I be interrogating?
can you be interrogating?
can she be interrogating?
can we be interrogating?
can you be interrogating?
can they be interrogating? 	can I have interrogated?
can you have interrogated?
can she have interrogated?
can we have interrogated?
can you have interrogated?
can they have interrogated? 	can I have been interrogating?
can you have been interrogating?
can she have been interrogating?
can we have been interrogating?
can you have been interrogating?
can they have been interrogating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I interrogate?
can't you interrogate?
can't she interrogate?
can't we interrogate?
can't you interrogate?
can't they interrogate? 	can't I be interrogating?
can't you be interrogating?
can't she be interrogating?
can't we be interrogating?
can't you be interrogating?
can't they be interrogating? 	can't I have interrogated?
can't you have interrogated?
can't she have interrogated?
can't we have interrogated?
can't you have interrogated?
can't they have interrogated? 	can't I have been interrogating?
can't you have been interrogating?
can't she have been interrogating?
can't we have been interrogating?
can't you have been interrogating?
can't they have been interrogating?