| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | four years ' [noun sg] | 68 |
|
| 2 | four year ' [noun sg] | 68 |
|
| 3 | four year ' [noun sg] | 68 |
|
| 4 | four year ' duration | 27 |
|
| 5 | four year ' time | 11 |
|
| 6 | four year ' imprisonment | 10 |
|
