| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] | 124168 |
|
| 2 | have been [to-vb] | 1120 |
|
| 3 | have been establish | 661 |
|
| 4 | have [be] to establish | 14 |
|
| 5 | [verb] been to establish | 14 |
|
| 6 | have be to establish | 14 |
|
| 7 | have [been] to establish | 14 |
|
