| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] for a | 946 |
|
| 2 | [verb] on for a | 192 |
|
| 3 | [modal v] [verb] on for | 134 |
|
| 4 | [modal v] [verb] on a | 97 |
|
