| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] be whether | 24 |
|
| 2 | [det] [be] whether | 24 |
|
| 3 | [det] [is] whether | 22 |
|
| 4 | [det] is whether | 20 |
|
| 5 | that [be] whether | 15 |
|
