| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a [adj] period | 425 |
|
| 2 | [verb] [prep] a [adj] period | 425 |
|
| 3 | [verb] [prep] a [adj] period | 384 |
|
| 4 | [vb pp] [prep] a [adj] period | 266 |
|
| 5 | [verb] for a [adj] period | 155 |
|
| 6 | [verb] for a [adj] period | 155 |
|
| 7 | [verb] [prep] a long period | 91 |
|
| 8 | [verb] over a [adj] period | 86 |
|
| 9 | [verb] over a [adj] period | 86 |
|
| 10 | [verb] [prep] a long period | 72 |
|
| 11 | [verb] [prep] a short period | 51 |
|
| 12 | [verb] [prep] a [adj -er] period | 39 |
|
| 13 | [v-ing] [prep] a [adj] period | 39 |
|
| 14 | [verb] [prep] a short period | 38 |
|
| 15 | [vb infin] [prep] a [adj] period | 31 |
|
| 16 | [verb] in a [adj] period | 30 |
|
| 17 | [verb] in a [adj] period | 30 |
|
| 18 | [to-vb] [prep] a [adj] period | 30 |
|
| 19 | go [prep] a [adj] period | 29 |
|
| 20 | [vb past] [prep] a [adj] period | 28 |
|
| 21 | [verb] through a [adj] period | 27 |
|
| 22 | [verb] within a [adj] period | 27 |
|
| 23 | [verb] within a [adj] period | 27 |
|
| 24 | [verb] through a [adj] period | 27 |
|
| 25 | [verb] after a [adj] period | 23 |
|
| 26 | [verb] after a [adj] period | 23 |
|
| 27 | [verb] [prep] a longer period | 19 |
|
| 28 | [vb -s] [prep] a [adj] period | 17 |
|
| 29 | [verb] [prep] a limited period | 17 |
|
| 30 | [verb] [prep] a limited period | 17 |
|
