| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [noun] have been [v-ing] | 7 |
|
| 2 | if [pos pn] [noun] have been [v-ing] | 7 |
|
| 3 | if [pron] [noun sg] have been [v-ing] | 5 |
|
