| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] [adj] [noun] of time | 614 |
|
| 2 | [prep] [art] [adj] period of [noun] | 545 |
|
| 3 | [prep] [art] [adj] period of [noun sg] | 516 |
|
| 4 | [prep] [art] [adj] period [prep] time | 321 |
|
| 5 | [prep] [art] [adj] period of time | 321 |
|
