| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] that it was [pron] duty | 8 |
|
| 2 | [vb past] that it was [pron] duty | 5 |
|
| 3 | that it was [pron] duty [verb] | 12 |
|
| 4 | that it was [pron] duty [to-vb] | 12 |
|
