| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] sometimes call | 20 |
|
| 2 | [Wh det] [is] sometimes called | 20 |
|
| 3 | [Wh det] is sometimes call | 19 |
|
| 4 | what [is] sometimes call | 17 |
|
