| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [Wh det] you must do | 5 |
|
| 2 | [is] [Wh det] you must do | 5 |
|
| 3 | be [Wh det] you must do | 5 |
|
| 4 | [Wh det] you must [adv] do | 5 |
|
| 5 | [Wh det] you must do [be] | 10 |
|
| 6 | [Wh det] you must do is | 10 |
|
| 7 | [Wh det] you must do [is] | 10 |
|
| 8 | [Wh det] you must do be | 10 |
|
