| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] back [prep] [pos pn] [det] | 57 |
|
| 2 | [vb past] back [prep] [pos pn] room | 47 |
|
| 3 | [vb past] [prep] [pos pn] [det] room | 19 |
|
| 4 | back [prep] [pos pn] [det] room | 19 |
|
