| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] use [prep] | 10878 |
|
| 2 | [be] [prep] [v-ing] | 5741 |
|
| 3 | use [prep] [v-ing] | 1043 |
|
| 4 | [be] use [v-ing] | 21 |
|
