Learn how to say However correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word however:
1used to introduce a statement that contrasts with or seems to contradict something that has been said previously:
People tend to put on weight in middle age. However, gaining weight is not inevitable
2 [relative adverb] in whatever way; regardless of how:
however you look at it, you can’t criticize that
[with adjective or adverb] to whatever extent:
he was hesitant to take the risk, however small
When ever is used for emphasis after how or why, it should be written as a separate word. Thus it is correct to write how ever did you manage? rather than however did you manage? (as distinct from other uses of the adverb however, which is always written as one word). With other words such as what, where, and who, the situation is not clear-cut: both two-word and one-word forms (both what ever and whatever, and so on) are well represented, and neither is regarded as particularly more correct than the other.