| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [Wh adv] they [vb mod] | 73 |
|
| 2 | [is] [Wh adv] they [modal v] | 73 |
|
| 3 | [is] [Wh adv] [pers pn] must | 46 |
|
| 4 | [is] [Wh adv] [pron] must | 46 |
|
| 5 | [be] [Wh adv] they must | 7 |
|
| 6 | [is] [Wh adv] they must | 6 |
|
| 7 | [is] [adv] they must | 6 |
|
| 8 | [is] [Wh adv] they must | 6 |
|
