| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] long period in | 14 |
|
| 2 | [prep] long period in | 14 |
|
| 3 | for long period in | 13 |
|
| 4 | for long period in | 13 |
|
| 5 | [verb] long period in | 12 |
|
| 6 | spend long period in | 12 |
|
| 7 | [art] long period in | 10 |
|
| 8 | [art] long period in | 10 |
|
| 9 | a long period in | 7 |
|
| 10 | a long period in | 7 |
|
| 11 | long period in [noun] | 21 |
|
| 12 | long period in [noun sg] | 14 |
|
| 13 | long period in [art] | 10 |
|
| 14 | long period in [art] | 10 |
|
| 15 | long period in the | 8 |
|
| 16 | long period in the | 8 |
|
| 17 | long period in [adj] | 6 |
|
| 18 | long period in [pron] | 5 |
|
