| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] a [noun sg] | 4613 |
|
| 2 | must [vb infin] a [noun sg] | 985 |
|
| 3 | must [adv] [vb infin] a | 192 |
|
| 4 | must [adv] [vb infin] [noun sg] | 134 |
|
