| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] [prep] a long [noun] | 38 |
|
| 2 | be [verb] [prep] a long period | 37 |
|
| 3 | [be] [verb] [prep] a long period | 37 |
|
| 4 | was [verb] [prep] a long [noun sg] | 36 |
|
| 5 | was [verb] [prep] a [adj] period | 25 |
|
| 6 | [was/were] [verb] [prep] a long period | 6 |
|
| 7 | was [verb] [prep] [art] long period | 6 |
|
| 8 | was [verb] [prep] a long period | 6 |
|
| 9 | was [verb] [prep] a long period | 6 |
|
| 10 | was [verb] [prep] a long period | 6 |
|
| 11 | was [verb] [prep] [art] long period | 6 |
|
