| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [verb] on [adj] | 173 |
|
| 2 | [modal v] [verb] [v-ing] [prep] [adj] | 152 |
|
| 3 | [modal v] [verb] [v-ing] [prep] [adj] | 152 |
|
| 4 | [modal v] [verb] [v-ing] on [adj] | 13 |
|
