| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have been [v-ing] [prep] | 24 |
|
| 2 | [pers pn] could have been [v-ing] [prep] | 23 |
|
| 3 | he could have been [v-ing] [prep] | 9 |
|
| 4 | he could have been [v-ing] [prep] | 9 |
|
| 5 | [noun] could have been [v-ing] [prep] | 5 |
|
| 6 | could [adv] have been [v-ing] [prep] | 6 |
|
| 7 | could have been [v-ing] [prep] [noun] | 9 |
|
| 8 | could have been [v-ing] [prep] [art] | 7 |
|
| 9 | could have been [v-ing] [prep] [art] | 7 |
|
| 10 | could have been [v-ing] [prep] [pron] | 6 |
|
| 11 | could have been [v-ing] [prep] the | 5 |
|
| 12 | could have been [v-ing] [prep] [adj] | 5 |
|
| 13 | could have been [v-ing] [prep] the | 5 |
|
