| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [be] [verb] | 1297 |
|
| 2 | could [verb] [be] [v-ing] | 105 |
|
| 3 | [vb mod] [verb] [be] talking | 15 |
|
| 4 | [modal v] [verb] [be] talking | 15 |
|
| 5 | could [verb] [be] talking | 6 |
|
| 6 | could [verb] [be] talk | 6 |
|
