| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period of time | 283 |
|
| 2 | [prep] a [adj] period of time | 283 |
|
| 3 | over a [adj] period of time | 120 |
|
| 4 | over a [adj] period of time | 120 |
|
| 5 | for a [adj] period of time | 107 |
|
| 6 | for a [adj] period of time | 107 |
|
| 7 | [adv] a [adj] period of time | 28 |
|
| 8 | over a [adj] period of time | 16 |
|
| 9 | within a [adj] period of time | 16 |
|
| 10 | over a [adj] period of time | 16 |
|
| 11 | within a [adj] period of time | 16 |
|
| 12 | [adv prt] a [adj] period of time | 16 |
|
| 13 | in a [adj] period of time | 15 |
|
| 14 | in a [adj] period of time | 15 |
|
| 15 | [adv] a [adj] period of time | 11 |
|
| 16 | after a [adj] period of time | 11 |
|
| 17 | after a [adj] period of time | 11 |
|
| 18 | [verb] a [adj] period of time | 7 |
|
| 19 | only a [adj] period of time | 6 |
|
| 20 | only a [adj] period of time | 6 |
|
| 21 | such a [adj] period of time | 5 |
|
| 22 | [adj] a [adj] period of time | 5 |
|
| 23 | [conj] a [adj] period of time | 5 |
|
| 24 | such a [adj] period of time | 5 |
|
| 25 | [det] a [adj] period of time | 5 |
|
| 26 | a [adv] [adj] period of time | 51 |
|
| 27 | a [adv] [adj] period of time | 51 |
|
| 28 | a very [adj] period of time | 21 |
|
| 29 | a very [adj] period of time | 21 |
|
| 30 | a relatively [adj] period of time | 16 |
|
