| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have been [v-ing] in | 31 |
|
| 2 | that had been [v-ing] in | 15 |
|
| 3 | that have been [v-ing] in | 8 |
|
| 4 | that has been [v-ing] in | 5 |
|
