| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [art] [adj] period [prep] | 96 |
|
| 2 | be [art] [adj] period [prep] | 83 |
|
| 3 | be a [adj] period [prep] | 63 |
|
| 4 | be [art] [adj] period of | 52 |
|
| 5 | be [art] [adj] period of | 52 |
|
| 6 | was [art] [adj] period [prep] | 31 |
|
| 7 | is [art] [adj] period [prep] | 29 |
|
| 8 | be [art] [adj] period for | 23 |
|
| 9 | be [art] [adj] period for | 23 |
|
| 10 | be [art] [adj] period [prep] | 18 |
|
| 11 | be the [adj] period [prep] | 18 |
|
| 12 | be [art] [adj] period in | 13 |
|
| 13 | been [art] [adj] period [prep] | 13 |
|
| 14 | be [art] [adj] period in | 13 |
|
| 15 | be an [adj] period [prep] | 12 |
|
| 16 | be [art] long period [prep] | 8 |
|
| 17 | be [art] [adj -est] period [prep] | 6 |
|
| 18 | be [art] long period [prep] | 6 |
|
