| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] [prep] [det] | 286 |
|
| 2 | [prep] be [v-ing] [prep] [det] | 143 |
|
| 3 | [modal v] [prep] be [v-ing] [prep] | 65 |
|
| 4 | [modal v] [prep] be [prep] [det] | 34 |
|
| 5 | [modal v] [prep] be [v-ing] [det] | 18 |
|
