| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's been [verb] for | 175 |
|
| 2 | 's been [v-ing] for | 110 |
|
| 3 | [verb] been working for | 66 |
|
| 4 | have been working for | 66 |
|
| 5 | 's been working [prep] | 23 |
|
| 6 | [vb -s] been working for | 23 |
|
| 7 | 's [been] working for | 8 |
|
| 8 | 's [be] working for | 8 |
|
| 9 | 's been work for | 8 |
|
| 10 | 's be working for | 8 |
|
