I can regress you can regress he can regress we can regress you can regress they can regress
Forme en V-ing
I can be regressing you can be regressing he can be regressing we can be regressing you can be regressing they can be regressing
Perfect
I can have regressed you can have regressed he can have regressed we can have regressed you can have regressed they can have regressed
Perfect en V-ing
I can have been regressing you can have been regressing he can have been regressing we can have been regressing you can have been regressing they can have been regressing
Négation
Forme simple
I can't regress you can't regress he can't regress we can't regress you can't regress they can't regress
Forme en V-ing
I can't be regressing you can't be regressing he can't be regressing we can't be regressing you can't be regressing they can't be regressing
Perfect
I can't have regressed you can't have regressed he can't have regressed we can't have regressed you can't have regressed they can't have regressed
Perfect en V-ing
I can't have been regressing you can't have been regressing he can't have been regressing we can't have been regressing you can't have been regressing they can't have been regressing
Forme interrogative
Forme simple
can I regress? can you regress? can he regress? can we regress? can you regress? can they regress?
Forme en V-ing
can I be regressing? can you be regressing? can he be regressing? can we be regressing? can you be regressing? can they be regressing?
Perfect
can I have regressed? can you have regressed? can he have regressed? can we have regressed? can you have regressed? can they have regressed?
Perfect en V-ing
can I have been regressing? can you have been regressing? can he have been regressing? can we have been regressing? can you have been regressing? can they have been regressing?
Forme interro-négative
Forme simple
can't I regress? can't you regress? can't he regress? can't we regress? can't you regress? can't they regress?
Forme en V-ing
can't I be regressing? can't you be regressing? can't he be regressing? can't we be regressing? can't you be regressing? can't they be regressing?
Perfect
can't I have regressed? can't you have regressed? can't he have regressed? can't we have regressed? can't you have regressed? can't they have regressed?
Perfect en V-ing
can't I have been regressing? can't you have been regressing? can't he have been regressing? can't we have been regressing? can't you have been regressing? can't they have been regressing?