| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a [adj] | 20594 |
|
| 2 | [modal v] be [vb pp] [prep] [adj] | 14807 |
|
| 3 | [modal v] be [vb pp] [prep] a | 8273 |
|
| 4 | [modal v] be [prep] a [adj] | 408 |
|
| 5 | [modal v] be [vb pp] a [adj] | 347 |
|
