| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long period of | 152 |
|
| 2 | after a [adj] period of | 64 |
|
| 3 | after a long [noun] of | 42 |
|
| 4 | after a long [noun sg] of | 40 |
|
| 5 | after a long period [prep] | 19 |
|
| 6 | after a long period [prep] | 19 |
|
| 7 | after [art] long period of | 18 |
|
| 8 | after [art] long period of | 18 |
|
| 9 | after a long period of | 16 |
|
| 10 | after a long period of | 16 |
|
| 11 | after a long period of | 16 |
|
