| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [v-ing] an [adj] | 8 |
|
| 2 | [noun pl] have been [v-ing] an [adj] | 7 |
|
| 3 | have been [v-ing] an [adj] [noun] | 10 |
|
| 4 | have been [v-ing] an [adj] [noun sg] | 9 |
|
