| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [pron] [pron] [vb mod] [verb] | 1050 |
|
| 2 | [be] [Wh det] [pron] [vb mod] [verb] | 593 |
|
| 3 | [is] [Wh det] [pron] [modal v] [verb] | 485 |
|
