| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [verb] a | 342 |
|
| 2 | [modal v] have see a | 33 |
|
| 3 | must have see [art] | 27 |
|
| 4 | must have see [art] | 27 |
|
| 5 | must [vb infin] see a | 7 |
|
| 6 | must [verb] see a | 7 |
|
| 7 | must have see a | 6 |
|
| 8 | must have see a | 6 |
|
