| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [verb] to | 111 |
|
| 2 | must have [vb pp] to | 109 |
|
| 3 | must have seemed [prep] | 32 |
|
| 4 | [modal v] have seemed to | 26 |
|
| 5 | [vb mod] have seemed to | 26 |
|
| 6 | must have seem to | 15 |
|
| 7 | must have seemed to | 15 |
|
| 8 | must [vb infin] seemed to | 15 |
|
| 9 | must [verb] seemed to | 15 |
|
| 10 | must have seemed to | 15 |
|
