| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [prep] four [noun pl] | 29 |
|
| 2 | is of four [noun] | 16 |
|
| 3 | is [prep] four year | 15 |
|
| 4 | is [prep] four years | 15 |
|
| 5 | is in four [noun] | 11 |
|
