| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] for about an [noun] | 7 |
|
| 2 | [verb] [adv prt] for about an [noun sg] | 7 |
|
| 3 | [verb] [adv prt] for about an hour | 7 |
|
| 4 | [verb] [adv prt] for about an hour | 7 |
|
