| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] of [adj] | 16783 |
|
| 2 | [prep] a [noun sg] of [adj] | 15370 |
|
| 3 | [prep] a period of [adj] | 755 |
|
| 4 | [prep] [art] period of [adj] | 349 |
|
| 5 | [prep] [art] period of [adj] | 349 |
|
| 6 | [prep] a period [prep] [adj] | 256 |
|
| 7 | [prep] a period [prep] [adj] | 256 |
|
| 8 | [prep] a period of [adj] | 252 |
|
| 9 | [prep] a period of [adj] | 252 |
|
| 10 | [prep] a period of [adj] | 252 |
|
