| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun pl] [v-ing] | 6098 |
|
| 2 | [noun pl] [v-ing] back | 288 |
|
| 3 | of [v-ing] back | 243 |
|
| 4 | of [noun pl] back | 105 |
|
