| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] [adv] [verb] [conj] | 7 |
|
| 2 | [vb mod] be [v-ing] [adv] [verb] [conj] | 7 |
|
| 3 | [modal v] be [v-ing] [adv] [to-vb] [conj] | 6 |
|
