| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [adv] been one of | 9 |
|
| 2 | it have [adv] been one of | 9 |
|
| 3 | it have always been one of | 6 |
|
| 4 | it has [adv] been one of | 5 |
|
