| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [verb] | 4610 |
|
| 2 | is [verb] [v-ing] | 801 |
|
| 3 | [be] [v-ing] [v-ing] | 504 |
|
| 4 | be [v-ing] [v-ing] | 504 |
|
| 5 | [is] [v-ing] [v-ing] | 80 |
|
