| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [adv prt] [prep] [art] | 1558 |
|
| 2 | [modal v] [be] [v-ing] [adv] [prep] [art] | 267 |
|
| 3 | [modal v] [be] [v-ing] [adv prt] [prep] [art] | 150 |
|
