| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [prep] [num] year | 16 |
|
| 2 | have been trying [prep] year | 9 |
|
| 3 | have been trying [prep] [num] | 8 |
|
| 4 | been trying [prep] [num] year | 6 |
|
