| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] to be [adj] | 29 |
|
| 2 | could [adv] [vb infin] to [be] [adj] | 29 |
|
| 3 | could [adv] [vb infin] to [be] [adj] | 27 |
|
| 4 | could [adv] [vb infin] to be [adj] | 27 |
|
| 5 | could not [vb infin] to [be] [adj] | 19 |
|
| 6 | could [not/n't] [vb infin] to [be] [adj] | 19 |
|
| 7 | could not [vb infin] to [be] [adj] | 13 |
|
| 8 | could [adv] [vb infin] to [be] [adj] | 10 |
|
| 9 | could [adv] fail to [be] [adj] | 8 |
|
| 10 | could n't [vb infin] to [be] [adj] | 6 |
|
