| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] period [prep] | 198 |
|
| 2 | [verb] a [adj] period [prep] | 180 |
|
| 3 | [verb] a [adj] period [prep] | 177 |
|
| 4 | [verb] a [adj] period of | 150 |
|
| 5 | [verb] a [adj] period of | 150 |
|
| 6 | [vb past] a [adj] period [prep] | 48 |
|
| 7 | [v-ing] a [adj] period [prep] | 34 |
|
| 8 | [verb] a long period [prep] | 26 |
|
| 9 | [to-vb] a [adj] period [prep] | 25 |
|
| 10 | [vb base] a [adj] period [prep] | 25 |
|
| 11 | [vb infin] a [adj] period [prep] | 23 |
|
| 12 | [vb pp] a [adj] period [prep] | 22 |
|
| 13 | have a [adj] period [prep] | 22 |
|
| 14 | [vb -s] a [adj] period [prep] | 21 |
|
| 15 | follow a [adj] period [prep] | 19 |
|
| 16 | [verb] a long period [prep] | 19 |
|
| 17 | [verb] a [adj] period in | 18 |
|
| 18 | [verb] a [adj -er] period [prep] | 18 |
|
| 19 | [verb] an [adj] period [prep] | 18 |
|
| 20 | [verb] a brief period [prep] | 18 |
|
| 21 | [verb] a [adj] period in | 18 |
|
| 22 | [verb] a brief period [prep] | 17 |
|
| 23 | [verb] a short period [prep] | 11 |
|
| 24 | spend a [adj] period [prep] | 10 |
|
| 25 | enjoy a [adj] period [prep] | 10 |
|
| 26 | [verb] a short period [prep] | 10 |
|
| 27 | following a [adj] period [prep] | 9 |
|
| 28 | [verb] a far period [prep] | 9 |
|
| 29 | [verb] a further period [prep] | 9 |
|
| 30 | followed a [adj] period [prep] | 8 |
|
