however
You use however when you are adding a comment that contrasts with what has just been said.
Some of the food crops failed. However, the cotton did quite well.
Losing at games doesn't matter to some women. Most men, however, can't stand it.
You also use however to say that it makes no difference how something is done.
You can do it however you want.
However we add that up, it does not make a dozen.
However we prepare for retirement there are undeniably risks.
Be careful
Don't use ‘however’ as a conjunction. For example, don't say ‘John always cooks dinner, however I usually wash up afterwards’. You can start a new sentence or clause, for example ‘John always cooks dinner. However, I usually wash up afterwards’. Or you can use a conjunction such as but or although, for example ‘John always cooks dinner, although I usually wash up afterwards.’
Don't use ‘however’ as a conjunction. For example, don't say ‘John always cooks dinner, however I usually wash up afterwards’. You can start a new sentence or clause, for example ‘John always cooks dinner. However, I usually wash up afterwards’. Or you can use a conjunction such as but or although, for example ‘John always cooks dinner, although I usually wash up afterwards.’