No | Pattern | Freq | Relations |
---|---|---|---|
1 | and [prep] a period of [noun] | 13 | |
2 | and [prep] a period of [noun] | 13 | |
3 | and [prep] a period of [noun sg] | 11 | |
4 | and over a period of [noun] | 9 | |
5 | and over a period of [noun] | 9 | |
6 | and [prep] a period of time | 9 | |
7 | and [prep] a period of time | 9 |