No | Pattern | Freq | Relations |
---|---|---|---|
1 | [v-ing] [prep] a long [noun] | 116 | |
2 | [verb] [prep] a long period | 91 | |
3 | [v-ing] [prep] a [adj] period | 39 | |
4 | [v-ing] [prep] [art] long period | 6 | |
5 | [v-ing] [prep] [art] long period | 6 | |
6 | [v-ing] [prep] a long period | 5 | |
7 | [v-ing] [prep] a long period | 5 |