| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [art] [adj] period | 159 |
|
| 2 | be [art] [adj] period | 155 |
|
| 3 | be a [adj] period | 116 |
|
| 4 | be a [adj] period | 95 |
|
| 5 | is [art] [adj] period | 52 |
|
| 6 | was [art] [adj] period | 51 |
|
| 7 | be the [adj] period | 36 |
|
| 8 | be the [adj] period | 36 |
|
| 9 | be [art] [adj] period | 35 |
|
| 10 | be an [adj] period | 21 |
|
| 11 | been [art] [adj] period | 11 |
|
| 12 | be [art] long period | 11 |
|
| 13 | be no [adj] period | 7 |
|
| 14 | be no [adj] period | 7 |
|
| 15 | be [art] transitional period | 6 |
|
| 16 | be [art] crucial period | 5 |
|
