| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] i have [been] trying [prep] | 5 |
|
| 2 | i have [been] trying [verb] [prep] | 16 |
|
| 3 | i have [been] trying [to-vb] [prep] | 16 |
|
| 4 | i have [been] trying [prep] [noun] | 5 |
|
