| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [prep] [v-ing] | 3232 |
|
| 2 | [is] [prep] [v-ing] | 3232 |
|
| 3 | [be] for [v-ing] | 279 |
|
| 4 | [is] for [verb] | 135 |
|
| 5 | [is] for [v-ing] | 134 |
|
