SN4 ""

No	Pattern	Freq
1	[verb] the [adj] problem	459
2	[verb] the [adj] problem	328
3	[verb] the [det] problem	100
4	[verb] the same problem	95
5	[verb] the same problem	95
6	[to-vb] the [adj] problem	93
7	[vb base] the [adj] problem	84
8	[vb past] the [adj] problem	76
9	have the [adj] problem	71
10	[vb -s] the [adj] problem	66
11	[vb infin] the [adj] problem	60
12	[v-ing] the [adj] problem	57
13	solve the [adj] problem	51
14	tackle the [adj] problem	27
15	face the [adj] problem	24
16	[vb pp] the [adj] problem	23
17	[verb] the whole problem	22
18	have the [adj] problem	22
19	[verb] the whole problem	22
20	had the [adj] problem	21
21	to tackle the [adj] problem	15
22	[verb] the [adj -est] problem	14
23	[verb] the main problem	13
24	solve the [adj] problem	13
25	to solve the [adj] problem	13
26	[verb] the main problem	13
27	[verb] the growing problem	12
28	[verb] the growing problem	12
29	have the [adj] problem	11
30	solving the [adj] problem	11