| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] [adv prt] [prep] a | 244 |
|
| 2 | could not [verb] [adv prt] [prep] | 234 |
|
| 3 | could not [verb] [prep] a | 159 |
|
| 4 | could [verb] [adv prt] [prep] a | 110 |
|
| 5 | could not [verb] [adv prt] a | 18 |
|
