| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be [v-ing] | 1630 |
|
| 2 | [modal v] be [v-ing] [noun prp] | 207 |
|
| 3 | [modal v] [adv] be [noun prp] | 104 |
|
| 4 | [adv] be [v-ing] [noun prp] | 24 |
|
