| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back at [adj] [noun pl] | 16 |
|
| 2 | [verb] back at [adj] [noun pl] | 12 |
|
| 3 | look back at [adj] [noun pl] | 7 |
|
| 4 | [v-ing] back at [adj] [noun pl] | 6 |
|
