| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [num] year | 313 |
|
| 2 | [noun sg] [prep] a [num] year | 216 |
|
| 3 | [verb] [prep] a [num] year | 168 |
|
| 4 | [vb pp] [prep] a [num] year | 85 |
|
| 5 | [noun pl] [prep] a [num] year | 69 |
|
| 6 | [adv] [prep] a [num] year | 66 |
|
| 7 | [adj] [prep] a [num] year | 63 |
|
| 8 | [adv] [prep] a [num] year | 33 |
|
| 9 | [adj] [prep] a [num] year | 24 |
|
| 10 | [v-ing] [prep] a [num] year | 22 |
|
| 11 | [num] [prep] a [num] year | 21 |
|
| 12 | [adv prt] [prep] a [num] year | 20 |
|
| 13 | [noun prp] [prep] a [num] year | 19 |
|
| 14 | [vb past] [prep] a [num] year | 18 |
|
| 15 | [vb infin] [prep] a [num] year | 18 |
|
| 16 | [pron] [prep] a [num] year | 16 |
|
| 17 | [conj] [prep] a [num] year | 15 |
|
| 18 | not [prep] a [num] year | 12 |
|
| 19 | [not/n't] [prep] a [num] year | 12 |
|
| 20 | not [prep] a [num] year | 12 |
|
| 21 | [det] [prep] a [num] year | 11 |
|
| 22 | [be] [prep] a [num] year | 11 |
|
| 23 | be [prep] a [num] year | 11 |
|
| 24 | [vb base] [prep] a [num] year | 10 |
|
| 25 | [vb -s] [prep] a [num] year | 10 |
|
| 26 | [pers pn] [prep] a [num] year | 9 |
|
| 27 | year [prep] a [num] year | 8 |
|
| 28 | [n mass] [prep] a [num] year | 8 |
|
| 29 | once [prep] a [num] year | 6 |
|
| 30 | once [prep] a [num] year | 6 |
|
