| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a period of | 1599 |
|
| 2 | [prep] a period of | 1599 |
|
| 3 | through a [noun] of | 1238 |
|
| 4 | through a [noun sg] of | 1052 |
|
| 5 | through [art] period of | 57 |
|
| 6 | through [art] period of | 57 |
|
| 7 | through a period [prep] | 48 |
|
| 8 | through a period [prep] | 48 |
|
| 9 | through a period of | 46 |
|
| 10 | through a period of | 46 |
|
| 11 | through a period of | 46 |
|
| 12 | through a period of | 46 |
|
