| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] on the [noun sg] | 55 |
|
| 2 | must depend on the [noun sg] | 6 |
|
| 3 | must proceed on the [noun sg] | 5 |
|
| 4 | must rely on the [noun sg] | 5 |
|
