| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] an [adj] | 1351 |
|
| 2 | [modal v] [be] [prep] [adj] | 1146 |
|
| 3 | [be] [prep] an [adj] | 885 |
|
| 4 | [modal v] [be] [prep] an | 149 |
|
| 5 | [modal v] [prep] an [adj] | 20 |
|
