| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] previously [been] | 33 |
|
| 2 | it have previously [be] | 33 |
|
| 3 | it [verb] previously be | 33 |
|
| 4 | it [verb] previously [be] | 33 |
|
| 5 | it [verb] previously been | 33 |
|
| 6 | it had previously [be] | 19 |
|
| 7 | it [vb past] previously [be] | 19 |
|
| 8 | it [vb -s] previously [be] | 14 |
|
| 9 | it has previously [be] | 13 |
|
