| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been carefully [verb] | 6 |
|
| 2 | which have be carefully [verb] | 6 |
|
| 3 | which have [been] carefully [verb] | 6 |
|
| 4 | which have [be] carefully [vb pp] | 6 |
|
