| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to [be] [verb] | 4311 |
|
| 2 | be [verb] [prep] [be] [v-ing] | 1388 |
|
| 3 | be [verb] [prep] [be] [v-ing] | 1233 |
|
| 4 | [be] [verb] to [be] [v-ing] | 1216 |
|
| 5 | be [verb] to [be] [v-ing] | 1216 |
|
