| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] [art] | 23754 |
|
| 2 | 's [be] [v-ing] [prep] | 332 |
|
| 3 | 's [be] [prep] [art] | 217 |
|
| 4 | 's [be] [v-ing] [art] | 98 |
|
