| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] be [adj] | 5141 |
|
| 2 | [modal v] [verb] [adj] years | 200 |
|
| 3 | [verb] be [adj] years | 162 |
|
| 4 | [modal v] be [adj] years | 136 |
|
