| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] its [noun sg] | 69 |
|
| 2 | must also [vb infin] [noun sg] | 43 |
|
| 3 | also [vb infin] its [noun sg] | 30 |
|
| 4 | must also [vb infin] its | 9 |
|
