| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] a | 16201 |
|
| 2 | [prep] be a | 16200 |
|
| 3 | [prep] was [art] | 215 |
|
| 4 | [prep] [was/were] a | 88 |
|
| 5 | [prep] was a | 85 |
|
