| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun] had a duty | 12 |
|
| 2 | [art] [noun] had a duty | 12 |
|
| 3 | the [noun] had a duty | 12 |
|
| 4 | [art] [noun] had a duty | 12 |
|
| 5 | [adj] [noun] had a duty | 7 |
|
| 6 | [adj] [noun] had a duty | 7 |
|
| 7 | [noun] had a duty [verb] | 21 |
|
| 8 | [noun] had a duty [to-vb] | 21 |
|
