| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] ought to | 205 |
|
| 2 | [Wh det] ought to | 108 |
|
| 3 | [Wh det] [noun pl] to | 52 |
|
| 4 | [Wh det] [noun pl] ought | 15 |
|
