| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] [be] [v-ing] | 1676 |
|
| 2 | [modal v] [prep] [be] [v-ing] | 275 |
|
| 3 | i [modal v] [prep] [be] | 273 |
|
| 4 | i [prep] [be] [v-ing] | 31 |
|
| 5 | i [modal v] [prep] [v-ing] | 10 |
|
