| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [verb] [prep] | 13514 |
|
| 2 | [modal v] [vb infin] [verb] is | 221 |
|
| 3 | [modal v] [verb] is [prep] | 71 |
|
| 4 | [modal v] [vb infin] is [prep] | 71 |
|
| 5 | [vb infin] [verb] is [prep] | 14 |
|
