| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [verb] [prep] | 589 |
|
| 2 | be [v-ing] [verb] for | 438 |
|
| 3 | [be] [v-ing] [verb] for | 438 |
|
| 4 | is [verb] [verb] for | 198 |
|
| 5 | [is] [v-ing] [verb] for | 81 |
|
