| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] on [num] | 734 |
|
| 2 | [verb] on [num] april | 205 |
|
| 3 | [was/were] [verb] on april | 168 |
|
| 4 | [was/were] [verb] [num] april | 41 |
|
