| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at the back [prep] | 110 |
|
| 2 | [pron] at the back [prep] | 41 |
|
| 3 | [pron] [adv] at the back | 20 |
|
| 4 | [pron] [adv] the back [prep] | 6 |
|
