| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a [adj] period | 162 |
|
| 2 | be [vb pp] [prep] a [adj] period | 162 |
|
| 3 | be [vb pp] for a [adj] period | 57 |
|
| 4 | be [vb pp] for a [adj] period | 57 |
|
| 5 | be [vb pp] over a [adj] period | 52 |
|
| 6 | be [vb pp] over a [adj] period | 52 |
|
| 7 | be [vb pp] within a [adj] period | 13 |
|
| 8 | be [vb pp] within a [adj] period | 13 |
|
| 9 | be [vb pp] by a [adj] period | 10 |
|
| 10 | be [vb pp] by a [adj] period | 10 |
|
| 11 | be [vb pp] in a [adj] period | 8 |
|
| 12 | be [vb pp] in a [adj] period | 8 |
|
| 13 | be [vb pp] after a [adj] period | 7 |
|
| 14 | be [vb pp] after a [adj] period | 7 |
|
| 15 | be [vb pp] a [adj] period [prep] | 5 |
|
| 16 | be [vb pp] a [adj] period [prep] | 5 |
|
