| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has [adv] been [prep] | 36 |
|
| 2 | it has [adv] be [prep] | 36 |
|
| 3 | it has [adv] be in | 18 |
|
| 4 | it has always be [prep] | 10 |
|
| 5 | it has ever be [prep] | 6 |
|
| 6 | it has never be [prep] | 5 |
|
