| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long period of [noun] | 127 |
|
| 2 | [prep] a long period of [noun] | 127 |
|
| 3 | for a [adj] period of [noun] | 122 |
|
| 4 | for a long [noun sg] of [noun] | 32 |
|
| 5 | for a long [noun] of [noun] | 32 |
|
| 6 | for a long period [prep] [noun] | 23 |
|
| 7 | for a long period [prep] [noun] | 23 |
|
| 8 | for [art] long period of [noun] | 22 |
|
| 9 | for [art] long period of [noun] | 22 |
|
| 10 | for a long period of [noun] | 20 |
|
| 11 | for a long period of [noun] | 20 |
|
| 12 | for a long period of [noun] | 20 |
|
| 13 | for a long period of [noun] | 20 |
|
