| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] have a | 1606 |
|
| 2 | [noun] have a duty | 129 |
|
| 3 | [noun] [conj] a duty | 17 |
|
| 4 | [conj] have a duty | 7 |
|
