| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [prep] | 3635 |
|
| 2 | had [been] [prep] | 3635 |
|
| 3 | [verb] [been] under | 275 |
|
| 4 | have [been] under | 275 |
|
| 5 | [vb past] [been] under | 141 |
|
| 6 | had [been] under | 138 |
|
| 7 | had [be] under | 138 |
|
