| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] [is] [v-ing] [prep] [art] | 333 |
|
| 2 | [conj] [pron] [is] [v-ing] [prep] [art] | 333 |
|
| 3 | [conj] [pron] [be] [v-ing] at [art] | 258 |
|
| 4 | [conj] [pron] [is] [verb] at [art] | 68 |
|
| 5 | [conj] [pron] [is] [v-ing] at [art] | 21 |
|
| 6 | [conj] [pron] [is] [v-ing] at [art] | 21 |
|
