| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] back [prep] [pos pn] [det] [noun] | 54 |
|
| 2 | [verb] back [prep] [pos pn] [det] room | 12 |
|
| 3 | [vb past] [adv] [prep] [pos pn] [det] room | 12 |
|
| 4 | [vb past] back [prep] [pos pn] [adj] room | 9 |
|
| 5 | [vb past] back [prep] [pron] [det] room | 7 |
|
