| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for at [adv] a [noun sg] | 150 |
|
| 2 | for at least a [noun] | 150 |
|
| 3 | for at [adv] a [noun] | 150 |
|
| 4 | for at least a [noun] | 150 |
|
| 5 | for at [adv] a [noun] | 150 |
|
| 6 | for at [adv] a [noun] | 130 |
|
| 7 | for at [adv] a year | 34 |
|
| 8 | for at [adv] a year | 34 |
|
| 9 | for at [adv] a month | 24 |
|
| 10 | for at [adv] a month | 24 |
|
| 11 | for at [adv] an [noun] | 20 |
|
| 12 | for at [adv] a hour | 19 |
|
| 13 | for at [adv] a hour | 19 |
|
| 14 | for at [adv] a week | 19 |
|
| 15 | for at [adv] a week | 19 |
|
| 16 | for at [adv] a decade | 10 |
|
| 17 | for at [adv] a decade | 10 |
|
| 18 | for at [adv] a fortnight | 7 |
|
| 19 | for at [adv] a fortnight | 7 |
|
| 20 | for at [adv] a century | 6 |
|
| 21 | for at [adv] a century | 6 |
|
