| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period [prep] | 1182 |
|
| 2 | a [adj] period [prep] | 1112 |
|
| 3 | a prolonged [noun] [prep] | 98 |
|
| 4 | a prolonged [noun sg] [prep] | 96 |
|
| 5 | [art] prolonged period [prep] | 34 |
|
| 6 | [art] prolonged period [prep] | 34 |
|
| 7 | a prolonged period [prep] | 32 |
|
| 8 | a prolonged period [prep] | 32 |
|
| 9 | a prolonged period [prep] | 32 |
|
