| complain to | (phrv) ตำหนิ, See also: แสดงความไม่พอใจ |
| complain to | (phrv) แจ้งความ, See also: ร้องทุกข์ |
| complain to | I am going to complain to the manager. |
| complain to | If that washing machine goes wrong again, I shall complain to the manufacturer. |
| complain to | I'm going to complain to the manager. |