| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [verb] to | 1151 |
|
| 2 | they [modal v] [verb] [v-ing] | 267 |
|
| 3 | [modal v] [verb] [v-ing] to | 264 |
|
| 4 | they [verb] [v-ing] to | 50 |
|
