| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | an earlier [noun] [prep] | 319 |
|
| 2 | an earlier [noun sg] [prep] | 318 |
|
| 3 | an [adj] period [prep] | 151 |
|
| 4 | [art] earlier period [prep] | 15 |
|
| 5 | [art] earlier period [prep] | 15 |
|
| 6 | an early period [prep] | 11 |
|
| 7 | an [adj -er] period [prep] | 10 |
|
| 8 | an earlier period [prep] | 10 |
|
| 9 | an earlier period [prep] | 10 |
|
| 10 | a earlier period [prep] | 10 |
|
