| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it a [noun] | 2734 |
|
| 2 | it a [noun sg] | 2674 |
|
| 3 | [pron] a year | 83 |
|
| 4 | it [art] year | 39 |
|
| 5 | it a year | 20 |
|
