| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] four years | 329 |
|
| 2 | four years [pron] | 83 |
|
| 3 | [conj] four [pron] | 24 |
|
| 4 | [conj] years [pron] | 6 |
|
