| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [prep] a | 17791 |
|
| 2 | be [prep] a | 17788 |
|
| 3 | [was/were] [prep] a | 5878 |
|
| 4 | were [prep] [art] | 5167 |
|
