| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [conj] the [noun sg] is | 40 |
|
| 2 | must [verb] that the [noun sg] is | 30 |
|
| 3 | must [verb] [that] the [noun sg] is | 30 |
|
| 4 | must [verb] that the [noun sg] is | 30 |
|
| 5 | must ensure [conj] the [noun sg] is | 11 |
|
| 6 | must ensure [conj] the [noun sg] is | 11 |
|
| 7 | must [verb] [subord] the [noun sg] is | 9 |
|
| 8 | must [verb] if the [noun sg] is | 5 |
|
| 9 | must [verb] if the [noun sg] is | 5 |
|
