| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] over a period | 21 |
|
| 2 | [vb pp] [adv] over a period | 19 |
|
| 3 | [verb] [adv] over a period | 12 |
|
| 4 | [verb] up over a period | 7 |
|
| 5 | [verb] up over a period | 7 |
|
| 6 | built [adv] over a period | 5 |
|
| 7 | build [adv] over a period | 5 |
|
