| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a period of [num] | 212 |
|
| 2 | [noun sg] [prep] a period of [num] | 121 |
|
| 3 | [verb] [prep] a period of [num] | 80 |
|
| 4 | [noun pl] [prep] a period of [num] | 71 |
|
| 5 | [vb pp] [prep] a period of [num] | 61 |
|
| 6 | [adv] [prep] a period of [num] | 28 |
|
| 7 | [adv] [prep] a period of [num] | 23 |
|
| 8 | [adj] [prep] a period of [num] | 20 |
|
| 9 | [noun prp] [prep] a period of [num] | 12 |
|
| 10 | [adj] [prep] a period of [num] | 10 |
|
| 11 | [conj] [prep] a period of [num] | 9 |
|
| 12 | [n mass] [prep] a period of [num] | 8 |
|
| 13 | [num] [prep] a period of [num] | 7 |
|
| 14 | [be] [prep] a period of [num] | 6 |
|
| 15 | be [prep] a period of [num] | 6 |
|
| 16 | [vb -s] [prep] a period of [num] | 5 |
|
| 17 | and [prep] a period of [num] | 5 |
|
| 18 | and [prep] a period of [num] | 5 |
|
| 19 | [adv prt] [prep] a period of [num] | 5 |
|
| 20 | [vb infin] [prep] a period of [num] | 5 |
|
| 21 | [unc] [prep] a period of [num] | 5 |
|
| 22 | [coord] [prep] a period of [num] | 5 |
|
| 23 | [no cls] [prep] a period of [num] | 5 |
|
| 24 | [prep] a [adj] period of [num] | 51 |
|
| 25 | [prep] a [adj] period of [num] | 46 |
|
| 26 | [prep] a [noun sg] period of [num] | 13 |
|
| 27 | [prep] a [noun] period of [num] | 13 |
|
| 28 | [prep] a maximum period of [num] | 11 |
|
| 29 | [prep] a maximum period of [num] | 11 |
|
| 30 | [prep] a mean period of [num] | 6 |
|
