| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] the past six | 78 |
|
| 2 | [prep] the past six years | 59 |
|
| 3 | [noun] [prep] the past years | 13 |
|
| 4 | [noun] [prep] the six years | 12 |
|
