| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could have been [verb] [prep] | 136 |
|
| 2 | [pers pn] could have been [v-ing] [prep] | 23 |
|
| 3 | [pers pn] [modal v] have been talking [prep] | 11 |
|
| 4 | [pers pn] could have [be] talking [prep] | 5 |
|
| 5 | [pers pn] could have been talk [prep] | 5 |
|
| 6 | [pers pn] could have been talking [prep] | 5 |
|
| 7 | [pers pn] could have [been] talking [prep] | 5 |
|
| 8 | [pers pn] could have be talking [prep] | 5 |
|
| 9 | [pron] could have been talking [prep] | 5 |
|
| 10 | [pers pn] could [verb] been talking [prep] | 5 |
|
