could skyjack
Regular verb: skyjack - skyjacked- skyjacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could skyjack
you could skyjack
she could skyjack
we could skyjack
you could skyjack
they could skyjack 	I could be skyjacking
you could be skyjacking
she could be skyjacking
we could be skyjacking
you could be skyjacking
they could be skyjacking	I could have skyjacked
you could have skyjacked
she could have skyjacked
we could have skyjacked
you could have skyjacked
they could have skyjacked	I could have been skyjacking
you could have been skyjacking
she could have been skyjacking
we could have been skyjacking
you could have been skyjacking
they could have been skyjacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not skyjack
you could not skyjack
she could not skyjack
we could not skyjack
you could not skyjack
they could not skyjack 	I could not be skyjacking
you could not be skyjacking
she could not be skyjacking
we could not be skyjacking
you could not be skyjacking
they could not be skyjacking	I could not have skyjacked
you could not have skyjacked
she could not have skyjacked
we could not have skyjacked
you could not have skyjacked
they could not have skyjacked	I could not have been skyjacking
you could not have been skyjacking
she could not have been skyjacking
we could not have been skyjacking
you could not have been skyjacking
they could not have been skyjacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I skyjack?
could you skyjack?
could she skyjack?
could we skyjack?
could you skyjack?
could they skyjack? 	could I be skyjacking?
could you be skyjacking?
could she be skyjacking?
could we be skyjacking?
could you be skyjacking?
could they be skyjacking? 	could I have skyjacked?
could you have skyjacked?
could she have skyjacked?
could we have skyjacked?
could you have skyjacked?
could they have skyjacked? 	could I have been skyjacking?
could you have been skyjacking?
could she have been skyjacking?
could we have been skyjacking?
could you have been skyjacking?
could they have been skyjacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not skyjack?
could you not skyjack?
could she not skyjack?
could we not skyjack?
could you not skyjack?
could they not skyjack? 	could I not be skyjacking?
could you not be skyjacking?
could she not be skyjacking?
could we not be skyjacking?
could you not be skyjacking?
could they not be skyjacking? 	could I not have skyjacked?
could you not have skyjacked?
could she not have skyjacked?
could we not have skyjacked?
could you not have skyjacked?
could they not have skyjacked? 	could I not have been skyjacking?
could you not have been skyjacking?
could she not have been skyjacking?
could we not have been skyjacking?
could you not have been skyjacking?
could they not have been skyjacking?