| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun pl] [v-ing] | 13944 |
|
| 2 | [prep] [v-ing] back | 986 |
|
| 3 | [noun pl] [v-ing] back | 288 |
|
| 4 | [prep] [noun pl] back | 132 |
|
