| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] [art] [num] | 203 |
|
| 2 | [be] [verb] since [art] [num] | 30 |
|
| 3 | [be] [v-ing] since [art] [adj] | 20 |
|
| 4 | [be] [v-ing] since [art] [num] | 8 |
|
