| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] a [no cls] | 40 |
|
| 2 | is [v-ing] a [unc] | 9 |
|
| 3 | 're [v-ing] a [unc] | 8 |
|
| 4 | was [v-ing] a [unc] | 8 |
|
| 5 | are [v-ing] a [unc] | 5 |
|
| 6 | be doing a [unc] | 5 |
|
