| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been trying [to-vb] [prep] | 59 |
|
| 2 | have been [to-vb] [noun] [prep] | 57 |
|
| 3 | have been trying [to-vb] [noun] | 54 |
|
| 4 | been trying [to-vb] [noun] [prep] | 27 |
|
