| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] is what [pers pn] must | 12 |
|
| 2 | [det] is what [pers pn] must | 12 |
|
| 3 | this is what [pers pn] must | 7 |
|
| 4 | this is what [pers pn] must | 7 |
|
| 5 | that is what [pers pn] must | 5 |
|
| 6 | that is what [pers pn] must | 5 |
|
| 7 | is what [pers pn] must [verb] | 12 |
|
| 8 | is what [pers pn] must [vb infin] | 12 |
|
| 9 | is what [pers pn] must do | 5 |
|
| 10 | is what [pers pn] must do | 5 |
|
