SN4 ""

No	Pattern	Freq
1	[adj] problem [was/were] the	42
2	[adj] problem [was/were] the	34
3	the problem [was/were] the	26
4	[art] problem [was/were] the	26
5	the problem [was/were] the	26
6	[art] problem [was/were] the	26
7	main problem [was/were] the	8
8	main problem [was/were] the	8
9	only problem [was/were] the	7
10	only problem [was/were] the	7
11	real problem [was/were] the	5
12	real problem [was/were] the	5
13	problem [was/were] [conj] the	32
14	problem [was/were] that the	29
15	problem [was/were] [that] the	29
16	problem [was/were] that the	29
17	problem [was/were] [verb] the	11
18	problem [was/were] [adv] the	9
19	problem [was/were] [to-vb] the	8
20	problem [was/were] [prep] the	8
21	problem [was/were] [prep] the	8
22	problem [was/were] [adv] the	6
23	problem [was/were] the [noun]	49
24	problem [was/were] the [noun sg]	40
25	problem [was/were] the [adj]	18
26	problem [was/were] the [adj]	15
27	problem [was/were] the [noun pl]	5