| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [verb] | 41547 |
|
| 2 | [vb past] be [v-ing] | 7136 |
|
| 3 | [vb past] be drive | 128 |
|
| 4 | [verb] be driving | 104 |
|
| 5 | [vb past] [be] driving | 49 |
|
