| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] that have been [v-ing] | 8 |
|
| 2 | [n mass] [that] have been [v-ing] | 8 |
|
| 3 | [n mass] that have been [v-ing] | 8 |
|
| 4 | people [conj] have been [v-ing] | 6 |
|
