| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [be] [v-ing] | 1125 |
|
| 2 | they [be] [v-ing] to | 640 |
|
| 3 | [modal v] [be] [v-ing] to | 603 |
|
| 4 | they [modal v] [be] to | 12 |
|
