| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] [adv] a [noun] | 84 |
|
| 2 | [v-ing] [prep] [adv] a [noun sg] | 82 |
|
| 3 | [verb] [prep] [adv] a hour | 53 |
|
| 4 | [v-ing] [prep] [adv] [art] hour | 13 |
|
| 5 | [v-ing] [prep] [adv] a hour | 12 |
|
