Does ios14 have translation keyboard? English to spanish

I don't know what you mean by "translation keyboard". This note tells you what it does have:

https://support.apple.com/en-us/HT211671

Gangwarily wrote:

Where you type in one language and it translates to another language and then you hit send

In the Translate app, select the translated text and then tap on "Share" in the popup menu that should appear to put the text in Mail or Message to send it somewhere.