| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if i had [not/n't] [been] [v-ing] | 5 |
|
| 2 | if i had [not/n't] be [v-ing] | 5 |
|
| 3 | if i had [not/n't] been [v-ing] | 5 |
|
