| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] period of [adj] | 638 |
|
| 2 | a period of [adj] | 486 |
|
| 3 | a period of [adj] | 486 |
|
| 4 | the period of [adj] | 149 |
|
| 5 | the period of [adj] | 149 |
|
| 6 | [art] period of rapid | 31 |
|
| 7 | [art] period of great | 18 |
|
| 8 | [art] period of considerable | 18 |
|
| 9 | [art] period of intense | 17 |
|
| 10 | [art] period of economic | 16 |
|
| 11 | [art] period of industrial | 14 |
|
| 12 | [art] period of high | 14 |
|
| 13 | [art] period of relative | 13 |
|
| 14 | [art] period of sustained | 12 |
|
| 15 | [art] period of military | 10 |
|
| 16 | [art] period of prolonged | 9 |
|
| 17 | [art] period of increasing | 9 |
|
| 18 | [art] period of severe | 8 |
|
| 19 | [art] period of unprecedented | 8 |
|
| 20 | [art] period of compulsory | 8 |
|
| 21 | [art] period of intensive | 8 |
|
| 22 | [art] period of political | 6 |
|
| 23 | [art] period of deep | 6 |
|
| 24 | [art] period of stable | 5 |
|
| 25 | [art] period of continental | 5 |
|
| 26 | [art] period of full | 5 |
|
| 27 | [art] period of public | 5 |
|
