| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been [adv] [verb] for | 10 |
|
| 2 | which have [been] [adv] [verb] for | 10 |
|
| 3 | which have be [adv] [verb] for | 10 |
|
| 4 | which have [be] [adv] [vb pp] for | 10 |
|
| 5 | which have [be] specially [verb] for | 5 |
|
