| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been many attempt | 7 |
|
| 2 | have been many attempt | 7 |
|
| 3 | have been many attempt | 7 |
|
| 4 | [verb] been many attempt | 7 |
|
| 5 | been many attempt [to-vb] | 7 |
|
| 6 | been many attempt [verb] | 7 |
|
