SN4 ""

No	Pattern	Freq
1	be [adj] because [prep]	405
2	be [adj] because of	400
3	is [adj] because [prep]	133
4	was [adj] because [prep]	88
5	be [adj] because [prep]	86
6	are [adj] because [prep]	61
7	be [det] because [prep]	33
8	were [adj] because [prep]	30
9	be difficult because [prep]	21
10	's [adj] because [prep]	21
11	be difficult because [prep]	21
12	be [adj] because in	20
13	be important because [prep]	18
14	be important because [prep]	18
15	be necessary because [prep]	18
16	been [adj] because [prep]	18
17	be necessary because [prep]	18
18	be that because [prep]	14
19	be that because [prep]	14
20	be possible because [prep]	14
21	be possible because [prep]	14
22	be [adj] because at	11
23	be [adj -er] because [prep]	9
24	be all because [prep]	9
25	be all because [prep]	9
26	be this because [prep]	9
27	be this because [prep]	9
28	be impossible because [prep]	7
29	being [adj] because [prep]	7
30	be impossible because [prep]	7