| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [adv] been | 3054 |
|
| 2 | it have [adv] been | 2100 |
|
| 3 | [pron] have previously been | 248 |
|
| 4 | [pers pn] have previously been | 81 |
|
| 5 | it have previously be | 33 |
|
| 6 | it [verb] previously been | 33 |
|
| 7 | it have previously [been] | 33 |
|
| 8 | it have previously [be] | 33 |
|
| 9 | it have previously been | 33 |
|
| 10 | it have previously been | 33 |
|
