| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [modal v] be [vb pp] | 8 |
|
| 2 | [be] [v-ing] [vb mod] be [verb] | 8 |
|
| 3 | be [v-ing] [modal v] be [verb] | 8 |
|
