| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [verb] a | 914 |
|
| 2 | [prep] be [verb] on | 426 |
|
| 3 | be [verb] on a | 46 |
|
| 4 | [prep] [verb] on a | 42 |
|
