| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] on [num] | 1255 |
|
| 2 | be [vb pp] on april | 220 |
|
| 3 | [vb pp] on [num] april | 119 |
|
| 4 | be [vb pp] [num] april | 43 |
|
| 5 | be on [num] april | 11 |
|
