| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [verb] back | 2044 |
|
| 2 | [v-ing] i [verb] | 1284 |
|
| 3 | [v-ing] [verb] back | 412 |
|
| 4 | [v-ing] i back | 44 |
|
