Practise! Since when is Duolingo teaching British English?
Well, here is the second Tiph'el I encounter in my lifetime in Hebrew after תִּרְגֵּם "translate". Denominated from רֶ֫גֶל (foot) it originally must have meant something like "to teach to walk".
האם אתה לומד שפות לדבר אנגלית בלבד?
Careful, the trolls upstairs are not accepting "each" for כל. Must input "every" to please them.