| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] year ['s] [noun] | 4433 |
|
| 2 | [num] year ['s] [noun] | 1256 |
|
| 3 | four [noun] ['s] [noun] | 181 |
|
| 4 | four year [unc] [noun] | 72 |
|
| 5 | four year ['s] [noun] | 71 |
|
