| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] about [num] years ['s] time | 6 |
|
| 2 | [adv] about [num] years ' time | 6 |
|
| 3 | in about [num] years ['s] time | 6 |
|
| 4 | in about [num] years ['s] time | 6 |
|
