| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] hours a [noun sg] | 739 |
|
| 2 | three [noun] a [noun sg] | 679 |
|
| 3 | three [noun pl] a [noun sg] | 648 |
|
| 4 | three hours [art] [noun sg] | 41 |
|
| 5 | three hours a [noun] | 32 |
|
| 6 | three hour a [noun sg] | 32 |
|
