| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] month [noun sg] period | 24 |
|
| 2 | [num] year [noun sg] period | 16 |
|
| 3 | [num] [noun sg] trial period | 10 |
|
| 4 | [num] hour [noun sg] period | 10 |
|
| 5 | [num] week [noun sg] period | 9 |
|
| 6 | two [noun sg] [noun sg] period | 9 |
|
| 7 | six [noun sg] [noun sg] period | 8 |
|
| 8 | three [noun sg] [noun sg] period | 6 |
|
| 9 | four [noun sg] [noun sg] period | 6 |
|
| 10 | 24 [noun sg] [noun sg] period | 5 |
|
