| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] two years [conj] [pron] | 58 |
|
| 2 | [prep] [adj] years before [pron] | 38 |
|
| 3 | [prep] two years [subord] [pron] | 37 |
|
| 4 | [prep] two [noun] before [pron] | 20 |
|
| 5 | [prep] two [noun pl] before [pron] | 20 |
|
| 6 | [prep] two years before [pron] | 5 |
|
| 7 | [prep] two year before [pron] | 5 |
|
| 8 | [prep] two years before [pron] | 5 |
|
