| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num] [noun sg] | 3270 |
|
| 2 | a [num] year [noun sg] | 500 |
|
| 3 | [prep] a [num] year | 491 |
|
| 4 | [prep] [num] year [noun sg] | 43 |
|
| 5 | [prep] a year [noun sg] | 11 |
|
