| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] a | 29815 |
|
| 2 | [be] [v-ing] a | 15940 |
|
| 3 | [be] driving [art] | 160 |
|
| 4 | [be] drive a | 100 |
|
