| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [verb] [pron] [prep] first | 10 |
|
| 2 | could [not/n't] [vb infin] [pron] [prep] first | 10 |
|
| 3 | could [not/n't] [verb] [pron] at first | 10 |
|
| 4 | could n't [verb] [pron] [prep] first | 9 |
|
| 5 | could [not/n't] [verb] [pers pn] [prep] first | 8 |
|
| 6 | could [not/n't] [verb] it [prep] first | 6 |
|
| 7 | could [not/n't] [verb] it [prep] first | 6 |
|
