| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] a [noun] | 73986 |
|
| 2 | a [noun] [v-ing] | 15166 |
|
| 3 | [conj] [noun] [v-ing] | 8543 |
|
| 4 | [conj] a [v-ing] | 15 |
|
