| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] at the back | 785 |
|
| 2 | [noun sg] [v-ing] at the | 639 |
|
| 3 | [v-ing] at the back | 84 |
|
| 4 | [noun sg] [v-ing] the back | 16 |
|
