| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [conj] [v-ing] [art] | 39 |
|
| 2 | [be] [subord] [v-ing] [art] | 27 |
|
| 3 | [is] [subord] [verb] [art] | 19 |
|
