| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [verb] [prep] | 12599 |
|
| 2 | [vb base] been [v-ing] [prep] | 1995 |
|
| 3 | [verb] been working [prep] | 484 |
|
| 4 | [vb base] been work [prep] | 173 |
|
| 5 | [vb base] [be] working [prep] | 168 |
|
| 6 | [vb base] be working [prep] | 168 |
|
| 7 | [vb base] [been] working [prep] | 165 |
|
