| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | look back [prep] [art] | 481 |
|
| 2 | then back [prep] [art] | 68 |
|
| 3 | then look [prep] [art] | 68 |
|
| 4 | then look back [prep] | 40 |
|
