| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as have been | 757 |
|
| 2 | as has been | 449 |
|
| 3 | as [vb -s] been | 449 |
|
| 4 | as [v-ing] been | 170 |
|
| 5 | as having been | 170 |
|
| 6 | as had been | 118 |
|
| 7 | as [vb past] been | 118 |
|
| 8 | as [vb base] been | 17 |
|
| 9 | as have been | 17 |
|
