| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [verb] a [noun sg] | 187 |
|
| 2 | have [verb] a [noun sg] [verb] | 134 |
|
| 3 | must [verb] a [noun sg] [verb] | 51 |
|
| 4 | must have a [noun sg] [verb] | 12 |
|
