| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] [prep] | 12534 |
|
| 2 | be [v-ing] [adv] [prep] | 12532 |
|
| 3 | were [verb] [adv] [prep] | 6455 |
|
| 4 | [was/were] [v-ing] [adv] [prep] | 4736 |
|
