| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] several years [pron] | 31 |
|
| 2 | for several years [pron] | 28 |
|
| 3 | [prep] several years [pers pn] | 24 |
|
| 4 | [prep] several years he | 7 |
|
| 5 | [prep] several years he | 7 |
|
| 6 | [prep] several years she | 6 |
|
| 7 | [prep] several years it | 6 |
|
| 8 | [prep] several years it | 6 |
|
| 9 | [prep] several years she | 6 |
|
