| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | their [noun] [prep] | 41832 |
|
| 2 | [pron] back [prep] | 1171 |
|
| 3 | [pos pn] back [prep] | 1165 |
|
| 4 | their back [prep] | 151 |
|
