SN4 ""

No	Pattern	Freq
1	were [vb pp] at [noun prp]	300
2	were [vb pp] at [noun sg]	183
3	were [vb pp] at [n mass]	81
4	were [vb pp] at [noun pl]	47
5	were [vb pp] at home	34
6	were [vb pp] at home	34
7	were held at [noun]	33
8	were found at [noun]	23
9	were made at [noun]	19
10	were built at [noun]	17
11	were incubated at [noun]	14
12	were [vb pp] at 37°c	13
13	were [vb pp] at 37°c	13
14	were [vb pp] at school	10
15	were [vb pp] at school	10
16	were valued at [noun]	10
17	were [vb pp] at intervals	9
18	were performed at [noun]	9
19	were [vb pp] at interval	9
20	were [vb pp] at night	8
21	were lost at [noun]	8
22	were [vb pp] at night	8
23	were [vb pp] at length	8
24	were kept at [noun]	8
25	were put at [noun]	8
26	were [vb pp] at length	8
27	were collected at [noun]	7
28	were seen at [noun]	7
29	were [vb pp] at 4°c	7
30	were [vb pp] at risk	7