| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [num] year ['s] [noun sg] | 15 |
|
| 2 | [det] [num] years ['s] [noun] | 13 |
|
| 3 | [det] [num] year ' [noun] | 13 |
|
| 4 | some [num] year ['s] [noun] | 8 |
|
