| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a [noun sg] [adv] | 593 |
|
| 2 | [v-ing] back [prep] a [noun sg] | 81 |
|
| 3 | back [prep] a [noun sg] [adv] | 52 |
|
| 4 | [v-ing] back [prep] [noun sg] [adv] | 19 |
|
