| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be working [prep] a | 61 |
|
| 2 | have been working [prep] a | 60 |
|
| 3 | have [been] working [prep] a | 60 |
|
| 4 | have [be] working on a | 25 |
|
| 5 | had [be] working [prep] a | 24 |
|
| 6 | have [be] working as a | 12 |
|
| 7 | has [be] working [prep] a | 12 |
|
| 8 | have [be] working [prep] a | 11 |
|
| 9 | have [be] working for a | 9 |
|
| 10 | 've [be] working [prep] a | 7 |
|
| 11 | have [be] working in a | 7 |
|
