| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [been] [verb] for | 215 |
|
| 2 | they have [been] [verb] for | 161 |
|
| 3 | which they have [been] [verb] | 137 |
|
| 4 | which they have [verb] for | 22 |
|
