| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [art] | 32032 |
|
| 2 | [be] [v-ing] [art] | 32032 |
|
| 3 | [be] [v-ing] a | 15940 |
|
| 4 | [be] [verb] an | 3933 |
|
