| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] long period of [noun sg] | 181 |
|
| 2 | [art] long period of [noun sg] | 181 |
|
| 3 | a long period of [noun sg] | 164 |
|
| 4 | a long period of [noun sg] | 164 |
|
| 5 | [art] long period of [noun sg] | 157 |
|
| 6 | [art] long period of time | 117 |
|
| 7 | [art] longer period of [noun sg] | 19 |
|
| 8 | the long period of [noun sg] | 17 |
|
| 9 | the long period of [noun sg] | 17 |
|
| 10 | [art] longest period of [noun sg] | 5 |
|
