How to call the next line during enumerate when using if-and-if statement

I am working on the code below where AnalyteName_user_input is a list of strings as seen in the image below.

Occasionally there is an instance where the value of index seven is 'W' rather than 'W2'. The current goal is to create a new list which would be AnalyteRatio_user_input. This would contain the values of a ratio evaluation between float values from the MeanResponse_list list. I believe the current issue lies in line 3 where I am attempting to use an if-in-and-if-in statement. I believe the issue is that I am trying to call the next line in the enumeration but line+1 is the 'W' value from the AnalyteName_user_input list. How would I remedy this to call the next line in the list rather than the string and then adding some int value?

AnalyteRatio_user_input = []
for i, line in enumerate(AnalyteName_user_input):
    if 'W' in line and 'W2' in line+1: # need a way to define the next line. Unsure about this.
    AnalyteRatio_user_input.append(MeanResponse_list[i]/MeanResponse_list[i+5])
    AnalyteRatio_user_input.append(MeanResponse_list[i+1]/MeanResponse_list[i+5])
    AnalyteRatio_user_input.append(MeanResponse_list[i+2]/MeanResponse_list[i+5])
    AnalyteRatio_user_input.append(MeanResponse_list[i+3]/MeanResponse_list[i+5])
    AnalyteRatio_user_input.append(MeanResponse_list[i+4]/MeanResponse_list[i+5])
    AnalyteRatio_user_input.append(MeanResponse_list[i+5]/MeanResponse_list[i+5])
else:
    AnalyteRatio_user_input.append('N/A')