| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] a [noun] of | 10702 |
|
| 2 | [coord] a [noun sg] of | 10200 |
|
| 3 | [conj] a period of | 82 |
|
| 4 | [coord] [art] period of | 51 |
|
| 5 | [coord] [art] period of | 51 |
|
| 6 | [coord] a period [prep] | 43 |
|
| 7 | [coord] a period of | 39 |
|
| 8 | [coord] a period of | 39 |
|
