| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | you must [vb infin] [verb] | 471 |
|
| 2 | you must [verb] [verb] | 471 |
|
| 3 | you [modal v] keep [verb] | 24 |
|
| 4 | [pron] must keep [verb] | 21 |
|
| 5 | you must keep [verb] | 5 |
|
