No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a million years | 41 | |
2 | [prep] a million years | 41 | |
3 | [prep] a million years | 41 | |
4 | in a million years | 28 | |
5 | in a million years | 28 | |
6 | for a million years | 6 | |
7 | for a million years | 6 |
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