| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [adv] [vb infin] [verb] [pers pn] | 18 |
|
| 2 | they could [adv] [verb] [verb] [pers pn] | 18 |
|
| 3 | they could [not/n't] [verb] [verb] [pers pn] | 13 |
|
| 4 | they could not [verb] [verb] [pers pn] | 13 |
|
| 5 | they could [adv] have [verb] [pers pn] | 10 |
|
| 6 | they could [adv] have [verb] [pers pn] | 10 |
|
| 7 | they could [adv] [verb] [vb pp] [pers pn] | 10 |
|
| 8 | they could n't [verb] [verb] [pers pn] | 8 |
|
| 9 | they could [adv] [verb] [to-vb] [pers pn] | 8 |
|
| 10 | they could [adv] [verb] [verb] it | 8 |
|
| 11 | they could [adv] afford [verb] [pers pn] | 6 |
|
| 12 | they could [adv] afford [verb] [pers pn] | 6 |
|
| 13 | they could not [verb] [verb] [pers pn] | 5 |
|
| 14 | they could [adv] [verb] [verb] [pers pn] | 5 |
|
