| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [be] [v-ing] | 30243 |
|
| 2 | [verb] [be] [v-ing] | 21171 |
|
| 3 | i [verb] [be] | 11011 |
|
| 4 | i [verb] [v-ing] | 3877 |
|
