| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | two years ' [noun] | 173 |
|
| 2 | two years ' [noun sg] | 167 |
|
| 3 | years ' [noun] [noun sg] | 37 |
|
| 4 | two years [noun] [noun sg] | 10 |
|
