| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [to-vb] [adv] | 74 |
|
| 2 | could afford [to-vb] [adv] | 22 |
|
| 3 | could [vb infin] [to-vb] so | 13 |
|
| 4 | could [vb infin] to do [adv] | 13 |
|
| 5 | could expect [to-vb] [adv] | 9 |
|
| 6 | could hope [to-vb] [adv] | 7 |
|
| 7 | could [vb infin] [to-vb] only | 6 |
|
| 8 | could continue [to-vb] [adv] | 6 |
|
