| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] a [noun] | 509 |
|
| 2 | we have been [v-ing] [noun] | 78 |
|
| 3 | we have been [v-ing] a | 43 |
|
| 4 | we have been a [noun] | 19 |
|
