| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] have been working for | 12 |
|
| 2 | [noun prp] [vb past] been working for | 6 |
|
| 3 | [noun prp] [vb -s] been working for | 6 |
|
| 4 | [noun prp] had been working for | 6 |
|
| 5 | [noun prp] has been working for | 5 |
|
