| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] of a | 44 |
|
| 2 | could [adv] [verb] of a | 44 |
|
| 3 | could [adv] [verb] of a | 44 |
|
| 4 | could [not/n't] [verb] of a | 40 |
|
| 5 | could [adv] think of a | 39 |
|
| 6 | could [adv] think of a | 39 |
|
| 7 | could not [verb] of a | 39 |
|
| 8 | could n't [verb] of a | 26 |
|
| 9 | could not [verb] of a | 13 |
|
