| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] be a [adj] | 231 |
|
| 2 | [vb infin] be a [adj] time | 10 |
|
| 3 | must [vb infin] be a time | 7 |
|
| 4 | must be a [adj] time | 7 |
|
| 5 | must [vb infin] a [adj] time | 5 |
|
