| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been [vb pp] [det] | 15 |
|
| 2 | which have [been] [vb pp] [det] | 15 |
|
| 3 | which have be [vb pp] [det] | 15 |
|
| 4 | which had [be] [vb pp] [det] | 9 |
|
