| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] twenty minutes | 34 |
|
| 2 | [vb past] [prep] twenty minute | 14 |
|
| 3 | [verb] for twenty minute | 14 |
|
| 4 | [vb pp] [prep] twenty minute | 11 |
|
| 5 | [v-ing] [prep] twenty minute | 5 |
|
| 6 | [verb] about twenty minute | 5 |
|
