| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] [prep] about [adj] | 647 |
|
| 2 | a [noun sg] [prep] about [num] | 631 |
|
| 3 | a [noun sg] of about [adj] | 586 |
|
| 4 | a [noun sg] [prep] about [adj] | 569 |
|
| 5 | an [noun sg] [prep] about [adj] | 78 |
|
| 6 | a period [prep] about [adj] | 37 |
|
| 7 | a [noun sg] [prep] about ten | 34 |
|
| 8 | a [noun sg] [prep] about ten | 34 |
|
| 9 | a [noun sg] for about [adj] | 29 |
|
| 10 | a [noun sg] [prep] about three | 28 |
|
| 11 | a group [prep] about [adj] | 28 |
|
| 12 | a [noun sg] [prep] about three | 28 |
|
| 13 | a [noun sg] [prep] about two | 24 |
|
| 14 | a [noun sg] [prep] about two | 24 |
|
| 15 | a [noun sg] [prep] about 30 | 23 |
|
| 16 | a [noun sg] [prep] about 30 | 23 |
|
| 17 | a total [prep] about [adj] | 23 |
|
| 18 | a population [prep] about [adj] | 22 |
|
| 19 | a [noun sg] [prep] about 10 | 21 |
|
| 20 | a [noun sg] [prep] about 10 | 21 |
|
| 21 | a depth [prep] about [adj] | 21 |
|
| 22 | a [noun sg] [prep] about 20 | 18 |
|
| 23 | a [noun sg] [prep] about 20 | 18 |
|
| 24 | a [noun sg] [prep] about 100 | 17 |
|
| 25 | a [noun sg] [prep] about 100 | 17 |
|
| 26 | a [noun sg] [prep] about five | 16 |
|
| 27 | a [noun sg] [prep] about five | 16 |
|
| 28 | a boy [prep] about [adj] | 16 |
|
| 29 | a average [prep] about [adj] | 15 |
|
| 30 | a rate [prep] about [adj] | 15 |
|
