SN4 ""

No	Pattern	Freq
1	[verb] at how [noun]	47
2	look at how [noun]	41
3	[verb] at how [noun pl]	16
4	[verb] at how [noun sg]	15
5	[vb -s] at how [noun]	12
6	looks at how [noun]	12
7	[vb infin] at how [noun]	11
8	look at how [noun]	9
9	[verb] at how [n mass]	9
10	[verb] at how people	8
11	[verb] at how people	8
12	[verb] at how [noun prp]	7
13	[vb base] at how [noun]	7
14	look at how [noun]	6
15	[to-vb] at how [noun]	6
16	to look at how [noun]	6
17	[v-ing] at how [noun]	5