| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there be [art] [adj] period [prep] | 23 |
|
| 2 | [ex0] be [art] [adj] period [prep] | 23 |
|
| 3 | [ex0] be [art] [adj] period [prep] | 20 |
|
| 4 | [ex0] be a [adj] period [prep] | 19 |
|
| 5 | [ex0] be [art] [adj] period of | 14 |
|
| 6 | [ex0] be [art] [adj] period of | 14 |
|
| 7 | [ex0] was [art] [adj] period [prep] | 11 |
|
| 8 | [ex0] is [art] [adj] period [prep] | 9 |
|
