| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] be | 1891 |
|
| 2 | be [v-ing] be | 1891 |
|
| 3 | [is] [v-ing] be | 351 |
|
| 4 | 's [verb] be | 195 |
|
| 5 | 's [v-ing] [be] | 127 |
|
