| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if he [vb past] been [v-ing] [adv] | 17 |
|
| 2 | if he [vb past] [been] [v-ing] [adv] | 17 |
|
| 3 | if he [vb past] be [v-ing] [adv] | 17 |
|
| 4 | if he [vb past] [be] [v-ing] [adv] | 17 |
|
