| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [pron] | 28827 |
|
| 2 | [be] [v-ing] [modal v] | 252 |
|
| 3 | [be] [modal v] [pron] | 78 |
|
| 4 | [v-ing] [modal v] [pron] | 60 |
|
