| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] on [num] [noun] | 75 |
|
| 2 | [be] on [num] april | 11 |
|
| 3 | [is] [prep] [num] april | 8 |
|
| 4 | [is] on [adj] april | 6 |
|
