| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have been [verb] | 3091 |
|
| 2 | have been [verb] [v-ing] | 542 |
|
| 3 | that have been [v-ing] | 307 |
|
| 4 | that have [verb] [v-ing] | 23 |
|
