can apprehend
Regular verb: apprehend - apprehended- apprehended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can apprehend
you can apprehend
she can apprehend
we can apprehend
you can apprehend
they can apprehend 	I can be apprehending
you can be apprehending
she can be apprehending
we can be apprehending
you can be apprehending
they can be apprehending	I can have apprehended
you can have apprehended
she can have apprehended
we can have apprehended
you can have apprehended
they can have apprehended	I can have been apprehending
you can have been apprehending
she can have been apprehending
we can have been apprehending
you can have been apprehending
they can have been apprehending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot apprehend
you cannot apprehend
she cannot apprehend
we cannot apprehend
you cannot apprehend
they cannot apprehend 	I cannot be apprehending
you cannot be apprehending
she cannot be apprehending
we cannot be apprehending
you cannot be apprehending
they cannot be apprehending	I cannot have apprehended
you cannot have apprehended
she cannot have apprehended
we cannot have apprehended
you cannot have apprehended
they cannot have apprehended	I cannot have been apprehending
you cannot have been apprehending
she cannot have been apprehending
we cannot have been apprehending
you cannot have been apprehending
they cannot have been apprehending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I apprehend?
can you apprehend?
can she apprehend?
can we apprehend?
can you apprehend?
can they apprehend? 	can I be apprehending?
can you be apprehending?
can she be apprehending?
can we be apprehending?
can you be apprehending?
can they be apprehending? 	can I have apprehended?
can you have apprehended?
can she have apprehended?
can we have apprehended?
can you have apprehended?
can they have apprehended? 	can I have been apprehending?
can you have been apprehending?
can she have been apprehending?
can we have been apprehending?
can you have been apprehending?
can they have been apprehending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not apprehend?
can you not apprehend?
can she not apprehend?
can we not apprehend?
can you not apprehend?
can they not apprehend? 	can I not be apprehending?
can you not be apprehending?
can she not be apprehending?
can we not be apprehending?
can you not be apprehending?
can they not be apprehending? 	can I not have apprehended?
can you not have apprehended?
can she not have apprehended?
can we not have apprehended?
can you not have apprehended?
can they not have apprehended? 	can I not have been apprehending?
can you not have been apprehending?
can she not have been apprehending?
can we not have been apprehending?
can you not have been apprehending?
can they not have been apprehending?