| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] a [noun sg] of years ago | 67 |
|
| 2 | [noun sg] a [noun sg] of years ago | 37 |
|
| 3 | [noun prp] a [noun sg] of years ago | 24 |
|
| 4 | [verb] a [noun sg] of years ago | 22 |
|
| 5 | [adv] a [noun sg] of years ago | 22 |
|
| 6 | [adv] a [noun sg] of years ago | 17 |
|
| 7 | [adj] a [noun sg] of years ago | 11 |
|
| 8 | [conj] a [noun sg] of years ago | 11 |
|
| 9 | [vb past] a [noun sg] of years ago | 10 |
|
| 10 | [prep] a [noun sg] of years ago | 9 |
|
| 11 | [prep] a [noun sg] of years ago | 9 |
|
| 12 | [subord] a [noun sg] of years ago | 8 |
|
| 13 | only a [noun sg] of years ago | 7 |
|
| 14 | [adj] a [noun sg] of years ago | 7 |
|
| 15 | only a [noun sg] of years ago | 7 |
|
| 16 | [be] a [noun sg] of years ago | 7 |
|
| 17 | be a [noun sg] of years ago | 7 |
|
| 18 | [noun pl] a [noun sg] of years ago | 6 |
|
| 19 | until a [noun sg] of years ago | 5 |
|
| 20 | [pron] a [noun sg] of years ago | 5 |
|
| 21 | [pers pn] a [noun sg] of years ago | 5 |
|
| 22 | [vb base] a [noun sg] of years ago | 5 |
|
| 23 | until a [noun sg] of years ago | 5 |
|
| 24 | [adv prt] a [noun sg] of years ago | 5 |
|
| 25 | a [noun sg] of [num] years ago | 6 |
|
| 26 | a [noun sg] of [adj] years ago | 6 |
|
| 27 | a [noun sg] of years ago [conj] | 31 |
|
| 28 | a [noun sg] of years ago [pron] | 20 |
|
| 29 | a [noun sg] of years ago [pers pn] | 19 |
|
| 30 | a [noun sg] of years ago [coord] | 17 |
|
