| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been such [art] | 12 |
|
| 2 | which have been such a | 12 |
|
| 3 | which have been such [art] | 12 |
|
| 4 | which have been such a | 10 |
|
| 5 | which had been such [art] | 8 |
|
