| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [vb pp] back [prep] | 31 |
|
| 2 | it be [vb pp] back [prep] | 31 |
|
| 3 | it [was/were] [vb pp] back [prep] | 18 |
|
| 4 | it was [vb pp] back [prep] | 18 |
|
| 5 | it [be] [vb pp] back to | 12 |
|
| 6 | it [is] [vb pp] back [prep] | 11 |
|
| 7 | it is [vb pp] back [prep] | 10 |
|
| 8 | it [be] [vb pp] back into | 5 |
|
