| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | three [conj] a [noun sg] | 72 |
|
| 2 | three hours a [noun sg] | 32 |
|
| 3 | hours [conj] a [noun sg] | 26 |
|
| 4 | three hours [conj] a | 5 |
|
