| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been trying [prep] [num] [noun] | 6 |
|
| 2 | [verb] been trying [prep] [num] years | 6 |
|
| 3 | [verb] been trying [prep] [num] year | 6 |
|
| 4 | [verb] been trying [prep] [num] [noun pl] | 6 |
|
