| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [prep] [noun] | 30884 |
|
| 2 | back [prep] [noun] | 10787 |
|
| 3 | [vb -s] back [prep] | 1368 |
|
| 4 | [vb -s] back [noun] | 62 |
|
