| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] two years and [pron] | 15 |
|
| 2 | [prep] two years and [pron] | 15 |
|
| 3 | for two years and [pron] | 13 |
|
| 4 | for two years and [pron] | 13 |
|
| 5 | [prep] two years and [pers pn] | 12 |
|
