| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been work for | 69 |
|
| 2 | have been for a | 60 |
|
| 3 | have work for a | 25 |
|
| 4 | been work for a | 12 |
|
| 5 | have been work a | 6 |
|
