| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [pron] [verb] | 2028 |
|
| 2 | [be] [v-ing] [verb] back | 162 |
|
| 3 | [be] [v-ing] [pron] back | 144 |
|
| 4 | [be] [pron] [verb] back | 85 |
|
| 5 | [v-ing] [pron] [verb] back | 61 |
|
