| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] trying [to-vb] | 477 |
|
| 2 | have [been] trying for | 40 |
|
| 3 | [been] trying [to-vb] for | 16 |
|
| 4 | have [been] [to-vb] for | 13 |
|
