No | Pattern | Freq | Relations |
---|---|---|---|
1 | [vb pp] [adv] [prep] a [adj] period | 42 | |
2 | [vb pp] [adv] [prep] a continuous [noun sg] | 9 | |
3 | [vb pp] [adv] [prep] a continuous [noun] | 9 | |
4 | [vb pp] [adv] [prep] a continuous period | 5 | |
5 | [vb pp] [adv] [prep] [art] continuous period | 5 | |
6 | [verb] [adv] [prep] a continuous period | 5 |