You just learn it! ask the answer what you want to say, or google translate
learn to use google it's "plaques de glace"
google translator
To learn is apprendre.
I love to learn is 'j'aime apprendre' in French.
just search in google
To say "I knew" in French, you would say "Je savais."
just search in google or in books
J'apprends
a apprendre
If you use Google Translater you can know how to say anything in French. Anyways, you say the same I think. Check on Google Translater
Google Translate