I could justify you could justify she could justify we could justify you could justify they could justify
V-ing form
I could be justifying you could be justifying she could be justifying we could be justifying you could be justifying they could be justifying
Perfect
I could have justified you could have justified she could have justified we could have justified you could have justified they could have justified
V-ing perfect
I could have been justifying you could have been justifying she could have been justifying we could have been justifying you could have been justifying they could have been justifying
Negation
Simple form
I could not justify you could not justify she could not justify we could not justify you could not justify they could not justify
V-ing form
I could not be justifying you could not be justifying she could not be justifying we could not be justifying you could not be justifying they could not be justifying
Perfect
I could not have justified you could not have justified she could not have justified we could not have justified you could not have justified they could not have justified
V-ing perfect
I could not have been justifying you could not have been justifying she could not have been justifying we could not have been justifying you could not have been justifying they could not have been justifying
Interrogative form
Simple form
could I justify? could you justify? could she justify? could we justify? could you justify? could they justify?
V-ing form
could I be justifying? could you be justifying? could she be justifying? could we be justifying? could you be justifying? could they be justifying?
Perfect
could I have justified? could you have justified? could she have justified? could we have justified? could you have justified? could they have justified?
V-ing perfect
could I have been justifying? could you have been justifying? could she have been justifying? could we have been justifying? could you have been justifying? could they have been justifying?
Interro-negative form
Simple form
could I not justify? could you not justify? could she not justify? could we not justify? could you not justify? could they not justify?
V-ing form
could I not be justifying? could you not be justifying? could she not be justifying? could we not be justifying? could you not be justifying? could they not be justifying?
Perfect
could I not have justified? could you not have justified? could she not have justified? could we not have justified? could you not have justified? could they not have justified?
V-ing perfect
could I not have been justifying? could you not have been justifying? could she not have been justifying? could we not have been justifying? could you not have been justifying? could they not have been justifying?