| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pron] ought [prep] [be] [v-ing] | 16 |
|
| 2 | [verb] we ought [prep] [be] [v-ing] | 15 |
|
| 3 | [vb base] we ought [prep] [be] [verb] | 11 |
|
| 4 | [vb base] we [modal v] [prep] [be] [v-ing] | 10 |
|
