| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have a [noun] to | 560 |
|
| 2 | [verb] a duty to | 61 |
|
| 3 | have a duty [prep] | 47 |
|
| 4 | have a duty [prep] | 47 |
|
| 5 | have [art] duty to | 38 |
|
| 6 | have [art] duty to | 38 |
|
| 7 | have a duty to | 36 |
|
| 8 | have a duty to | 36 |
|
