| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [adj] years | 177 |
|
| 2 | [noun sg] [prep] a million [noun] | 167 |
|
| 3 | [noun sg] [prep] a million [noun pl] | 128 |
|
| 4 | [noun] [prep] a million years | 9 |
|
| 5 | [noun sg] [prep] a million year | 6 |
|
| 6 | [noun sg] [prep] [art] million years | 6 |
|
