No | Pattern | Freq | Relations |
---|---|---|---|
1 | for a long period of [noun] | 20 | |
2 | for a long period of [noun sg] | 20 | |
3 | for a long period of time | 17 | |
4 | for a long period of time | 17 | |
5 | [verb] for a long period of | 8 | |
6 | [noun] for a long period of | 7 | |
7 | [noun sg] for a long period of | 6 | |
8 | [vb pp] for a long period of | 5 | |
9 | for a [adv] long period of | 6 | |
10 | for a [adv] long period of | 6 |