| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [adj] [noun] of | 1480 |
|
| 2 | [adv] [prep] a [adj] [noun sg] of | 1426 |
|
| 3 | [adv] [prep] a [adj] period of | 63 |
|
| 4 | [adv] [prep] a [adj] period [prep] | 62 |
|
| 5 | [adv] [prep] [art] [adj] period of | 59 |
|
| 6 | [adv] [prep] a [adj] period of | 49 |
|
