| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [verb] [be] | 594 |
|
| 2 | [vb mod] [be] [v-ing] [be] | 50 |
|
| 3 | [vb mod] [be] do [be] | 48 |
|
| 4 | [modal v] [be] doing [be] | 21 |
|
