in regard to (o) (about) | de (o) (about) |
in regard to (o) (about) | au sujet de (o) (about) |
in regard to (o) (about) | concernant (o) (about) |
in regard to (o) (about) | à l'égard de (o) (about) |
in regard to (o) (about) | en ce qui concerne (o) (about) |