| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [be] [v-ing] [prep] | 46 |
|
| 2 | be [v-ing] [be] [v-ing] [prep] | 36 |
|
| 3 | be doing [be] [verb] [prep] | 26 |
|
| 4 | [be] doing [be] [v-ing] [prep] | 21 |
|
| 5 | be do [be] [v-ing] [prep] | 21 |
|
