| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [v-ing] [n mass] [prep] | 6 |
|
| 2 | have been [v-ing] [adj] [n mass] [prep] | 6 |
|
| 3 | have been [v-ing] [adj] [n mass] [prep] | 5 |
|
