| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] to | 1036 |
|
| 2 | must [vb infin] to | 1034 |
|
| 3 | must look [prep] | 173 |
|
| 4 | [modal v] look to | 134 |
|
| 5 | [vb mod] look to | 134 |
|
| 6 | must look to | 30 |
|
| 7 | must look to | 30 |
|
