| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] a [adj] | 305 |
|
| 2 | they have been [v-ing] [adj] | 82 |
|
| 3 | they have been [v-ing] a | 27 |
|
| 4 | they have been a [adj] | 16 |
|
