| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have be under | 31 |
|
| 2 | which have been under | 31 |
|
| 3 | which have be under | 31 |
|
| 4 | which had be under | 23 |
|
| 5 | which have be under | 5 |
|
