| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [be] [verb] about | 10 |
|
| 2 | [vb mod] have [be] talking about | 9 |
|
| 3 | [modal v] have [be] talking about | 9 |
|
| 4 | could have [be] talking [prep] | 6 |
|
| 5 | could have [be] talking [prep] | 6 |
|
| 6 | could have [be] [v-ing] about | 6 |
|
| 7 | could have [be] talking about | 5 |
|
| 8 | could [verb] [be] talking about | 5 |
|
| 9 | could have [be] talking about | 5 |
|
| 10 | could have [be] talk about | 5 |
|
