| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [v-ing] | 21171 |
|
| 2 | have [be] [v-ing] | 19925 |
|
| 3 | [vb base] [be] [v-ing] | 7085 |
|
| 4 | 've [be] [verb] | 4417 |
|
