| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] [vb pp] [prep] | 7061 |
|
| 2 | [was/were] [vb pp] back [prep] | 575 |
|
| 3 | it [was/were] back [prep] | 57 |
|
| 4 | it [was/were] [vb pp] back | 32 |
|
| 5 | it [vb pp] back [prep] | 10 |
|
