| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] for [num] year | 11 |
|
| 2 | have [been] trying for year | 9 |
|
| 3 | have [been] trying for [num] | 6 |
|
| 4 | [been] trying for [num] year | 6 |
|
