| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] for [adj] [noun] | 860 |
|
| 2 | [modal v] [verb] [prep] [adj] year | 167 |
|
| 3 | [modal v] [verb] [prep] [adj] year | 167 |
|
| 4 | [modal v] [verb] for [adj] year | 85 |
|
