I can endanger you can endanger she can endanger we can endanger you can endanger they can endanger
V-ing form
I can be endangering you can be endangering she can be endangering we can be endangering you can be endangering they can be endangering
Perfect
I can have endangered you can have endangered she can have endangered we can have endangered you can have endangered they can have endangered
V-ing perfect
I can have been endangering you can have been endangering she can have been endangering we can have been endangering you can have been endangering they can have been endangering
Negation
Simple form
I cannot endanger you cannot endanger she cannot endanger we cannot endanger you cannot endanger they cannot endanger
V-ing form
I cannot be endangering you cannot be endangering she cannot be endangering we cannot be endangering you cannot be endangering they cannot be endangering
Perfect
I cannot have endangered you cannot have endangered she cannot have endangered we cannot have endangered you cannot have endangered they cannot have endangered
V-ing perfect
I cannot have been endangering you cannot have been endangering she cannot have been endangering we cannot have been endangering you cannot have been endangering they cannot have been endangering
Interrogative form
Simple form
can I endanger? can you endanger? can she endanger? can we endanger? can you endanger? can they endanger?
V-ing form
can I be endangering? can you be endangering? can she be endangering? can we be endangering? can you be endangering? can they be endangering?
Perfect
can I have endangered? can you have endangered? can she have endangered? can we have endangered? can you have endangered? can they have endangered?
V-ing perfect
can I have been endangering? can you have been endangering? can she have been endangering? can we have been endangering? can you have been endangering? can they have been endangering?
Interro-negative form
Simple form
can I not endanger? can you not endanger? can she not endanger? can we not endanger? can you not endanger? can they not endanger?
V-ing form
can I not be endangering? can you not be endangering? can she not be endangering? can we not be endangering? can you not be endangering? can they not be endangering?
Perfect
can I not have endangered? can you not have endangered? can she not have endangered? can we not have endangered? can you not have endangered? can they not have endangered?
V-ing perfect
can I not have been endangering? can you not have been endangering? can she not have been endangering? can we not have been endangering? can you not have been endangering? can they not have been endangering?