| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] be [v-ing] [art] | 681 |
|
| 2 | be [v-ing] since [art] | 42 |
|
| 3 | [vb base] be [v-ing] since | 32 |
|
| 4 | [vb base] be since [art] | 5 |
|
