| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] been [verb] | 1528 |
|
| 2 | they [vb past] been [v-ing] | 402 |
|
| 3 | [pron] [vb past] been driving | 31 |
|
| 4 | they [vb past] been drive | 13 |
|
| 5 | they [verb] been driving | 8 |
|
| 6 | they [vb past] [be] driving | 6 |
|
| 7 | they [vb past] be driving | 6 |
|
| 8 | they [vb past] [been] driving | 6 |
|
