| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] been [adv] [adj] | 107 |
|
| 2 | could [adv] have been [adv] [adj] | 107 |
|
| 3 | could [adv] [verb] been [adv] [adj] | 107 |
|
| 4 | could [adv] have been [adv] [adj] | 107 |
|
| 5 | could [not/n't] [verb] been [adv] [adj] | 83 |
|
| 6 | could not [verb] been [adv] [adj] | 83 |
|
| 7 | could [adv] [verb] been more [adj] | 79 |
|
| 8 | could [adv] [verb] been more [adj] | 79 |
|
| 9 | could not [verb] been [adv] [adj] | 45 |
|
| 10 | could n't [verb] been [adv] [adj] | 38 |
|
| 11 | could [adv] [verb] been [adv] [adj] | 24 |
|
| 12 | could [adv] [verb] been [adv] wrong | 13 |
|
| 13 | could hardly [verb] been [adv] [adj] | 13 |
|
| 14 | could hardly [verb] been [adv] [adj] | 13 |
|
| 15 | could [adv] [verb] been [adv] different | 9 |
|
| 16 | could [adv] [verb] been so [adj] | 7 |
|
| 17 | could [adv] [verb] been so [adj] | 7 |
|
