| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been such [art] | 33 |
|
| 2 | it have been [det] a | 31 |
|
| 3 | it 's been [det] [art] | 19 |
|
| 4 | it had been [det] [art] | 12 |
|
