| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] to [be] [verb] | 324 |
|
| 2 | [Wh det] [is] to [be] [vb pp] | 323 |
|
| 3 | [Wh det] [be] to [be] done | 90 |
|
| 4 | [pron] [is] to [be] done | 83 |
|
| 5 | [Wh det] [is] [prep] [be] done | 72 |
|
| 6 | [Wh det] [is] to [be] do | 72 |
|
