| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [verb] [num] [noun] | 204 |
|
| 2 | [pron] [vb mod] [verb] [num] year | 67 |
|
| 3 | it [vb mod] [verb] [adj] year | 52 |
|
| 4 | it [modal v] [verb] [num] year | 30 |
|
