This is how to change AliExpress to English.
Usually the problem is that AliExpress detects your country location incorrectly, thus displaying the wrong language -- here are several solutions that you can try (results vary).
- First clear your browser cookies (for aliexpress.com & alibaba.com).
- Important; Open the first page in English after clearing cookies.
- Now AliExpress should remember English as the default language.
More detailed instructions here (source).
The permanent solution is to use a VPN to change your "geolocation" -- so that you can obtain a working IP address from the nearest English speaking country (US, UK, etc).
Not any VPN will do, especially when doing security sensitive shopping activities (a) VPN needs to be trusted (b) it's better to have many server locations to choose from.
This is the most obvious but can fail, click on the "Go to Global Site (English)" link:
You can also try to obtain a different IP address by contacting through other means, such as your phone connection, friends house, neighbour, etc.