| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [prep] a [adj] | 337 |
|
| 2 | [modal v] [be] extended [prep] [adj] | 36 |
|
| 3 | [modal v] [be] extended [prep] a | 24 |
|
| 4 | [be] extended [prep] a [adj] | 17 |
|
