| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] say [prep] [adj] | 10 |
|
| 2 | could [not/n't] say for [adj] | 7 |
|
| 3 | could n't say [prep] [adj] | 7 |
|
| 4 | could [not/n't] say [prep] certain | 5 |
|
