I can detour you can detour he can detour we can detour you can detour they can detour
V-ing form
I can be detouring you can be detouring he can be detouring we can be detouring you can be detouring they can be detouring
Perfect
I can have detoured you can have detoured he can have detoured we can have detoured you can have detoured they can have detoured
V-ing perfect
I can have been detouring you can have been detouring he can have been detouring we can have been detouring you can have been detouring they can have been detouring
Negation
Simple form
I cannot detour you cannot detour he cannot detour we cannot detour you cannot detour they cannot detour
V-ing form
I cannot be detouring you cannot be detouring he cannot be detouring we cannot be detouring you cannot be detouring they cannot be detouring
Perfect
I cannot have detoured you cannot have detoured he cannot have detoured we cannot have detoured you cannot have detoured they cannot have detoured
V-ing perfect
I cannot have been detouring you cannot have been detouring he cannot have been detouring we cannot have been detouring you cannot have been detouring they cannot have been detouring
Interrogative form
Simple form
can I detour? can you detour? can he detour? can we detour? can you detour? can they detour?
V-ing form
can I be detouring? can you be detouring? can he be detouring? can we be detouring? can you be detouring? can they be detouring?
Perfect
can I have detoured? can you have detoured? can he have detoured? can we have detoured? can you have detoured? can they have detoured?
V-ing perfect
can I have been detouring? can you have been detouring? can he have been detouring? can we have been detouring? can you have been detouring? can they have been detouring?
Interro-negative form
Simple form
can I not detour? can you not detour? can he not detour? can we not detour? can you not detour? can they not detour?
V-ing form
can I not be detouring? can you not be detouring? can he not be detouring? can we not be detouring? can you not be detouring? can they not be detouring?
Perfect
can I not have detoured? can you not have detoured? can he not have detoured? can we not have detoured? can you not have detoured? can they not have detoured?
V-ing perfect
can I not have been detouring? can you not have been detouring? can he not have been detouring? can we not have been detouring? can you not have been detouring? can they not have been detouring?