| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a long period [prep] [noun] | 160 |
|
| 2 | a long period [prep] [noun sg] | 154 |
|
| 3 | a long period [prep] time | 102 |
|
| 4 | a long period [prep] time | 102 |
|
| 5 | a long period [prep] [adj] | 28 |
|
| 6 | a long period [prep] [adj] | 25 |
|
| 7 | a long period [prep] [art] | 12 |
|
| 8 | a long period [prep] [art] | 12 |
|
| 9 | a long period [prep] the | 8 |
|
| 10 | a long period [prep] [pron] | 8 |
|
| 11 | a long period [prep] the | 8 |
|
| 12 | a long period [prep] [Wh det] | 6 |
|
| 13 | a long period [prep] which | 6 |
|
| 14 | a long period [prep] which | 6 |
|
| 15 | a long period [prep] [noun pl] | 5 |
|
| 16 | [prep] a long period [prep] | 162 |
|
| 17 | [prep] a long period [prep] | 162 |
|
| 18 | over a long period [prep] | 85 |
|
| 19 | over a long period [prep] | 85 |
|
| 20 | for a long period [prep] | 27 |
|
| 21 | for a long period [prep] | 27 |
|
| 22 | after a long period [prep] | 19 |
|
| 23 | [verb] a long period [prep] | 19 |
|
| 24 | after a long period [prep] | 19 |
|
| 25 | [adv] a long period [prep] | 13 |
|
| 26 | of a long period [prep] | 10 |
|
| 27 | of a long period [prep] | 10 |
|
| 28 | [adv prt] a long period [prep] | 9 |
|
| 29 | over a long period [prep] | 9 |
|
| 30 | over a long period [prep] | 9 |
|
