| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] at the [noun] | 2251 |
|
| 2 | [verb] at the back | 402 |
|
| 3 | [to-vb] [prep] the back | 107 |
|
| 4 | [to-vb] [prep] the back | 107 |
|
| 5 | [to-vb] at [art] back | 20 |
|
| 6 | [to-vb] at the back | 20 |
|
