| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] for [art] | 3216 |
|
| 2 | be [v-ing] for [art] | 3216 |
|
| 3 | is [v-ing] [prep] [art] | 3060 |
|
| 4 | is [verb] for [art] | 1503 |
|
| 5 | [is] [v-ing] for [art] | 595 |
|
