| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if it [vb past] [verb] a | 25 |
|
| 2 | if it [vb past] [verb] a | 23 |
|
| 3 | if it [vb past] [vb pp] a | 14 |
|
| 4 | if it had [verb] a | 13 |
|
| 5 | if it [vb past] [to-vb] a | 5 |
|
