| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to [be] [verb] [prep] | 14908 |
|
| 2 | [verb] [prep] [be] [v-ing] [prep] | 1367 |
|
| 3 | [verb] [prep] [be] [v-ing] [prep] | 1314 |
|
| 4 | [verb] to [be] [v-ing] [prep] | 1304 |
|
