| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] is [verb] | 1915 |
|
| 2 | to [Wh det] [be] [verb] | 379 |
|
| 3 | to [Wh det] be [verb] | 379 |
|
| 4 | to [pron] is [verb] | 257 |
|
| 5 | to [Wh det] [is] [verb] | 212 |
|
