| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] year [noun sg] | 318 |
|
| 2 | [prep] a four [noun] [noun sg] | 93 |
|
| 3 | [prep] a four [noun sg] [noun sg] | 89 |
|
| 4 | [prep] [art] four year [noun sg] | 18 |
|
| 5 | [prep] [art] four year [noun sg] | 18 |
|
| 6 | [prep] a four year [noun] | 13 |
|
| 7 | [prep] a four year [noun sg] | 13 |
|
| 8 | [prep] a four year [noun sg] | 13 |
|
