Have went up?

[Kievstar]

Hi everybody. I have several times seen this phrase 'have went up'. Shouldn't it be 'have gone up'? What does this mean? Thank you!

[Alan]

Common usage is have gone up and have went up is dialect. In this country (UK) you would hear it used in Scotland. So perhaps it's best to stick to have gone up.
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[Kievstar]

Hello Alan. Thank you for your answer. Now it's clear.