| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] at once | 35 |
|
| 2 | not [vb infin] [prep] once | 30 |
|
| 3 | not [verb] [prep] once | 27 |
|
| 4 | not answer [prep] once | 13 |
|
| 5 | not answer [prep] once | 13 |
|
| 6 | n't [verb] [prep] once | 12 |
|
| 7 | not [vb pp] [prep] once | 6 |
|
| 8 | not reply [prep] once | 5 |
|
| 9 | not reply [prep] once | 5 |
|
