| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a million years | 11 |
|
| 2 | [noun] [prep] a million years | 9 |
|
| 3 | [noun sg] [prep] a million years | 6 |
|
| 4 | not [prep] a million years | 6 |
|
| 5 | not [prep] a million years | 6 |
|
| 6 | [verb] [prep] a million years | 6 |
|
| 7 | [not/n't] [prep] a million years | 6 |
|
| 8 | [adj] [prep] a million years | 5 |
|
| 9 | [prep] a [adj] million years | 10 |
|
| 10 | [prep] a [num] million years | 6 |
|
| 11 | [prep] a hundred million years | 5 |
|
| 12 | [prep] a hundred million years | 5 |
|
