| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years [noun] [modal v] be | 14 |
|
| 2 | [adj] ['s] [noun] [modal v] be | 13 |
|
| 3 | [adj] years ['s] [noun] [modal v] | 10 |
|
| 4 | years ['s] [noun] [modal v] be | 6 |
|
