| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have [vb pp] a | 224 |
|
| 2 | [pron] must have [verb] a | 224 |
|
| 3 | [pron] [vb mod] have looked a | 13 |
|
| 4 | [pron] [modal v] have looked a | 13 |
|
| 5 | [pron] must have looked [art] | 9 |
|
| 6 | [pron] must have looked a | 7 |
|
| 7 | [pron] must have looked a | 7 |
|
| 8 | [pron] must have look a | 7 |
|
| 9 | [pron] must [verb] looked a | 7 |
|
| 10 | [pron] must [vb infin] looked a | 7 |
|
