| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [verb] | 4562 |
|
| 2 | must have [vb pp] | 4527 |
|
| 3 | [modal v] have thought | 1218 |
|
| 4 | must [verb] thought | 111 |
|
| 5 | must [vb infin] thought | 111 |
|
| 6 | must have think | 111 |
|
| 7 | must have thought | 111 |
|
