| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [det] years it | 32 |
|
| 2 | for [det] years it | 25 |
|
| 3 | for [det] years it | 25 |
|
| 4 | [prep] many years it | 18 |
|
| 5 | [prep] several years it | 6 |
|
