| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] | 44521 |
|
| 2 | be [v-ing] [adv] | 44513 |
|
| 3 | was [verb] [adv] | 32961 |
|
| 4 | [was/were] [v-ing] [adv] | 16046 |
|
