| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [be] [v-ing] [modal v] [vb infin] | 61 |
|
| 2 | [Wh det] [be] [verb] [modal v] [vb infin] | 36 |
|
| 3 | [Wh det] [be] [v-ing] [modal v] [verb] | 6 |
|
