Summary: 'How did you' can be reduced to 'howdja', 'where did you' to 'wheredja' and 'what did you' to 'whadja,' but those reductions can cost listener comprehension
Summary: 'How did you' can be reduced to 'howdja', 'where did you' to 'wheredja' and 'what did you' to 'whadja,' but those reductions can cost listener comprehension