| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | a [adv] long period [prep] | 15 |
|
| 32 | a very long period [prep] | 8 |
|
| 33 | a very long period [prep] | 8 |
|
| 34 | a long period [prep] [noun] | 160 |
|
| 35 | a long period [prep] [noun sg] | 154 |
|
| 36 | a long period [prep] time | 102 |
|
| 37 | a long period [prep] time | 102 |
|
| 38 | a long period [prep] [adj] | 28 |
|
| 39 | a long period [prep] [adj] | 25 |
|
| 40 | a long period [prep] [art] | 12 |
|
| 41 | a long period [prep] [art] | 12 |
|
| 42 | a long period [prep] the | 8 |
|
| 43 | a long period [prep] [pron] | 8 |
|
| 44 | a long period [prep] the | 8 |
|
| 45 | a long period [prep] [Wh det] | 6 |
|
| 46 | a long period [prep] which | 6 |
|
| 47 | a long period [prep] which | 6 |
|
| 48 | a long period [prep] [noun pl] | 5 |
|
