| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [adv] a | 1720 |
|
| 2 | [noun pl] [adv] a | 745 |
|
| 3 | [noun] only a | 378 |
|
| 4 | [noun] once a | 305 |
|
| 5 | [noun prp] [adv] a | 270 |
|
| 6 | [noun] just a | 254 |
|
| 7 | [noun] later a | 158 |
|
| 8 | year [adv] a | 157 |
|
| 9 | [noun] twice a | 132 |
|
| 10 | years [adv] a | 131 |
|
| 11 | [noun] quite a | 129 |
|
| 12 | [noun] ago a | 125 |
|
| 13 | [noun] then a | 112 |
|
| 14 | [noun] about a | 98 |
|
| 15 | [noun] over a | 90 |
|
| 16 | day [adv] a | 76 |
|
| 17 | [n mass] [adv] a | 67 |
|
| 18 | [noun] so a | 66 |
|
| 19 | [noun] almost a | 50 |
|
| 20 | days [adv] a | 47 |
|
| 21 | [noun] after a | 45 |
|
| 22 | minute [adv] a | 43 |
|
| 23 | time [adv] a | 41 |
|
| 24 | [noun] now a | 40 |
|
| 25 | time [adv] a | 39 |
|
| 26 | [noun] even a | 39 |
|
| 27 | week [adv] a | 38 |
|
| 28 | [noun] still a | 37 |
|
| 29 | minutes [adv] a | 34 |
|
| 30 | day [adv] a | 29 |
|
