| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] [subord] an hour | 69 |
|
| 2 | for [adj] [subord] an [noun] | 38 |
|
| 3 | for [adj] [conj] an hour | 35 |
|
| 4 | for [adj] [subord] a hour | 35 |
|
| 5 | for [adj] [subord] [art] hour | 35 |
|
| 6 | for [adj] [subord] [art] hour | 35 |
|
