| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it could have [be] | 30 |
|
| 2 | [subord] it could have be | 30 |
|
| 3 | [subord] it could have [been] | 30 |
|
| 4 | [subord] it could have been | 30 |
|
| 5 | [subord] it could have [verb] | 17 |
|
| 6 | [subord] it could have [vb pp] | 17 |
|
| 7 | [adj] [subord] it could have | 8 |
|
| 8 | [noun] [subord] it could have | 8 |
|
| 9 | [noun sg] [subord] it could have | 7 |
|
| 10 | [adj] [subord] it could have | 7 |
|
| 11 | [adv] [subord] it could have | 7 |
|
| 12 | [verb] [subord] it could have | 6 |
|
| 13 | [adv] [subord] it could have | 6 |
|
| 14 | [subord] it could [adv] have | 19 |
|
| 15 | [subord] it could [adv] have | 12 |
|
| 16 | [subord] it could not have | 7 |
|
| 17 | [subord] it could [not/n't] have | 7 |
|
