| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [noun] it be [verb] | 240 |
|
| 2 | [pron] duty it be [verb] | 11 |
|
| 3 | [Wh det] duty [pron] be [verb] | 10 |
|
| 4 | [Wh det] duty it [be] [verb] | 10 |
|
