can hijack
Regular verb: hijack - hijacked- hijacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can hijack
you can hijack
she can hijack
we can hijack
you can hijack
they can hijack 	I can be hijacking
you can be hijacking
she can be hijacking
we can be hijacking
you can be hijacking
they can be hijacking	I can have hijacked
you can have hijacked
she can have hijacked
we can have hijacked
you can have hijacked
they can have hijacked	I can have been hijacking
you can have been hijacking
she can have been hijacking
we can have been hijacking
you can have been hijacking
they can have been hijacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't hijack
you can't hijack
she can't hijack
we can't hijack
you can't hijack
they can't hijack 	I can't be hijacking
you can't be hijacking
she can't be hijacking
we can't be hijacking
you can't be hijacking
they can't be hijacking	I can't have hijacked
you can't have hijacked
she can't have hijacked
we can't have hijacked
you can't have hijacked
they can't have hijacked	I can't have been hijacking
you can't have been hijacking
she can't have been hijacking
we can't have been hijacking
you can't have been hijacking
they can't have been hijacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I hijack?
can you hijack?
can she hijack?
can we hijack?
can you hijack?
can they hijack? 	can I be hijacking?
can you be hijacking?
can she be hijacking?
can we be hijacking?
can you be hijacking?
can they be hijacking? 	can I have hijacked?
can you have hijacked?
can she have hijacked?
can we have hijacked?
can you have hijacked?
can they have hijacked? 	can I have been hijacking?
can you have been hijacking?
can she have been hijacking?
can we have been hijacking?
can you have been hijacking?
can they have been hijacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I hijack?
can't you hijack?
can't she hijack?
can't we hijack?
can't you hijack?
can't they hijack? 	can't I be hijacking?
can't you be hijacking?
can't she be hijacking?
can't we be hijacking?
can't you be hijacking?
can't they be hijacking? 	can't I have hijacked?
can't you have hijacked?
can't she have hijacked?
can't we have hijacked?
can't you have hijacked?
can't they have hijacked? 	can't I have been hijacking?
can't you have been hijacking?
can't she have been hijacking?
can't we have been hijacking?
can't you have been hijacking?
can't they have been hijacking?