| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] a | 13940 |
|
| 2 | be [v-ing] a | 13939 |
|
| 3 | be [v-ing] [art] | 3777 |
|
| 4 | be [v-ing] [art] | 3777 |
|
| 5 | be [verb] a | 3417 |
|
| 6 | be [v-ing] a | 1716 |
|
| 7 | [be] [v-ing] a | 1487 |
|
