| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] it [pron] | 651 |
|
| 2 | [is] [pron] [Wh det] | 646 |
|
| 3 | [is] [pers pn] [Wh det] | 43 |
|
| 4 | [be] it [Wh det] | 31 |
|
| 5 | [is] it [Wh det] | 26 |
|
