| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for a | 477 |
|
| 2 | [noun prp] have been [verb] for | 330 |
|
| 3 | [noun prp] have been [verb] a | 226 |
|
| 4 | [noun prp] have [verb] for a | 98 |
|
