No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a long period [prep] [noun sg] | 117 | |
2 | [prep] a long period of [noun] | 116 | |
3 | [prep] a long period [prep] time | 88 | |
4 | [prep] a long period [prep] time | 88 | |
5 | over a long period [prep] [noun] | 78 | |
6 | for a long period [prep] [noun] | 19 | |
7 | after a long period [prep] [noun] | 11 |