| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a | 51401 |
|
| 2 | be [vb pp] upon [art] | 567 |
|
| 3 | be [vb pp] upon [art] | 567 |
|
| 4 | be [vb pp] upon a | 168 |
|
| 5 | be [verb] upon a | 146 |
|
| 6 | [be] [vb pp] upon a | 134 |
|
