| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [adj] [noun] | 120613 |
|
| 2 | back [prep] [adj] [noun] | 1978 |
|
| 3 | [vb pp] back [prep] [noun] | 995 |
|
| 4 | [vb pp] back [prep] [adj] | 357 |
|
| 5 | [vb pp] back [adj] [noun] | 59 |
|
