| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [indef pn] have been [v-ing] | 5 |
|
| 2 | [prep] if [indef pn] have been [v-ing] | 5 |
|
| 3 | as if [indef pn] have been [v-ing] | 5 |
|
| 4 | as if [indef pn] have been [v-ing] | 5 |
|
