| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [v-ing] [prep] [adj] | 592 |
|
| 2 | [be] [v-ing] [prep] [adv] [adj] | 360 |
|
| 3 | [modal v] [be] [prep] [adv] [adj] | 246 |
|
| 4 | [modal v] [be] [v-ing] [adv] [adj] | 185 |
|
| 5 | [modal v] [be] [v-ing] [prep] [adv] | 86 |
|
