| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be [v-ing] [prep] | 443 |
|
| 2 | [conj] [modal v] be [v-ing] [prep] | 84 |
|
| 3 | [conj] [modal v] [adv] be [v-ing] | 68 |
|
| 4 | [conj] [modal v] [adv] be [prep] | 55 |
|
| 5 | [conj] [adv] be [v-ing] [prep] | 9 |
|
