No | Pattern | Freq | Relations |
---|---|---|---|
1 | could have [verb] a [noun] drop | 7 | |
2 | could have [verb] a [noun] drop | 7 | |
3 | could [verb] [verb] a pin drop | 7 | |
4 | could [vb infin] [verb] a [noun] drop | 7 | |
5 | could [verb] hear a [noun] drop | 7 | |
6 | could [verb] [vb pp] a [noun] drop | 7 | |
7 | could [verb] [verb] a [noun sg] drop | 7 | |
8 | could [verb] [verb] a pin drop | 7 | |
9 | could [verb] heard a [noun] drop | 7 |