| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [v-ing] for [adj] | 9 |
|
| 2 | [modal v] have been [v-ing] for [adj] | 9 |
|
| 3 | have been [v-ing] for [adj] [noun] | 8 |
|
