| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [Wh det] [is] | 219 |
|
| 2 | be [v-ing] [Wh det] [is] | 75 |
|
| 3 | be doing [pron] [is] | 25 |
|
| 4 | be do [Wh det] [is] | 15 |
|
| 5 | be doing [Wh det] [be] | 13 |
|
| 6 | [be] doing [Wh det] [is] | 12 |
|
