| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [been] [prep] | 31 |
|
| 2 | which have been [prep] | 31 |
|
| 3 | which have be [prep] | 31 |
|
| 4 | which have [be] in | 13 |
|
| 5 | which have [be] under | 5 |
|
