| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] happens if it [verb] | 9 |
|
| 2 | [Wh det] happen if it [verb] | 9 |
|
| 3 | [Wh det] [verb] if it [verb] | 9 |
|
| 4 | [Wh det] [vb -s] if it [verb] | 9 |
|
| 5 | [Wh det] if it [verb] [adv] | 9 |
|
| 6 | [Wh det] if it [verb] not | 6 |
|
| 7 | [Wh det] if it [verb] [not/n't] | 6 |
|
| 8 | [Wh det] if it [verb] n't | 5 |
|
