| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | having been [verb] [prep] | 869 |
|
| 2 | having been [vb pp] [prep] | 859 |
|
| 3 | [verb] been established [prep] | 282 |
|
| 4 | have been established [prep] | 282 |
|
| 5 | having been established [prep] | 9 |
|
| 6 | having [been] established [prep] | 9 |
|
| 7 | [v-ing] been established [prep] | 9 |
|
| 8 | having be established [prep] | 9 |
|
| 9 | having [be] established [prep] | 9 |
|
| 10 | having been establish [prep] | 9 |
|
