| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | four years ['s] [noun sg] | 68 |
|
| 2 | four years ' [noun sg] | 68 |
|
| 3 | four years ['s] duration | 27 |
|
| 4 | four years ['s] time | 11 |
|
| 5 | four years ['s] imprisonment | 10 |
|
