| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we could [not/n't] [vb infin] [noun sg] | 15 |
|
| 2 | we could not [vb infin] [noun sg] | 9 |
|
| 3 | we could n't [vb infin] [noun sg] | 6 |
|
