| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] fast enough | 28 |
|
| 2 | not [vb infin] fast enough | 12 |
|
| 3 | not [v-ing] fast enough | 10 |
|
| 4 | not move fast enough | 9 |
|
| 5 | not [vb pp] fast enough | 6 |
|
| 6 | not moving fast enough | 5 |
|
