| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [verb] | 4562 |
|
| 2 | [vb mod] have put | 421 |
|
| 3 | [modal v] have put | 421 |
|
| 4 | must [verb] put | 38 |
|
| 5 | must [vb infin] put | 38 |
|
| 6 | must have put | 33 |
|
| 7 | must have put | 32 |
|
