| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [prep] [v-ing] | 243 |
|
| 2 | [verb] [be] [prep] [v-ing] | 243 |
|
| 3 | [verb] [am/are] [prep] [v-ing] | 9 |
|
| 4 | [verb] are [prep] [verb] | 9 |
|
