| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [noun pl] [v-ing] back | 10 |
|
| 2 | and [noun pl] [v-ing] back | 9 |
|
| 3 | and [noun pl] [v-ing] back | 9 |
|
| 4 | [conj] [noun pl] dating back | 5 |
|
