No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a [adj] period [modal v] [vb infin] | 9 | |
2 | [prep] a [adj] period [modal v] [vb infin] | 9 | |
3 | over a [adj] period [modal v] [vb infin] | 6 | |
4 | over a [adj] period [modal v] [vb infin] | 6 | |
5 | a [adj] period [pron] [modal v] [vb infin] | 6 |