| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] have been work [prep] | 77 |
|
| 2 | have been work [prep] a | 66 |
|
| 3 | [noun prp] have been [prep] a | 47 |
|
| 4 | [noun prp] have work [prep] a | 18 |
|
