| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been looking into | 14 |
|
| 2 | have been looking into | 14 |
|
| 3 | [vb base] been looking into | 6 |
|
| 4 | been looking into [pron] | 7 |
|
| 5 | been looking into [art] | 5 |
|
| 6 | been looking into [art] | 5 |
|
