| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] be [v-ing] [adv] | 610 |
|
| 2 | be [v-ing] [adv] since | 51 |
|
| 3 | [vb base] be [v-ing] since | 32 |
|
| 4 | [vb base] be [adv] since | 19 |
|
