| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [adv] [verb] if | 15 |
|
| 2 | have be [adv] [vb pp] if | 15 |
|
| 3 | have be [adv] [verb] if | 15 |
|
| 4 | have be [adv] [verb] if | 12 |
|
