| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] an [adj] | 54 |
|
| 2 | have been [v-ing] for an | 31 |
|
| 3 | have been [v-ing] for [adj] | 30 |
|
| 4 | been [v-ing] for an [adj] | 10 |
|
