| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [Wh det] [pron] [vb past] | 286 |
|
| 2 | is [Wh det] it [verb] | 76 |
|
| 3 | [be] [Wh det] it [vb past] | 75 |
|
| 4 | be [Wh det] it [vb past] | 75 |
|
| 5 | [is] [Wh det] it [vb past] | 52 |
|
| 6 | is [pron] it [vb past] | 19 |
|
