| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] [art] | 4797 |
|
| 2 | [modal v] take [art] | 2993 |
|
| 3 | [vb mod] take [art] | 2993 |
|
| 4 | must take [art] | 125 |
|
| 5 | must take [art] | 125 |
|
