| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] [adj] [noun] | 29223 |
|
| 2 | back [prep] [adj] [noun] | 1978 |
|
| 3 | [v-ing] back [prep] [noun] | 897 |
|
| 4 | [v-ing] back [prep] [adj] | 473 |
|
| 5 | [v-ing] back [adj] [noun] | 121 |
|
