Learn French: Mon grand-père fait le jardin. - My grandfather does the gardening.

In French, the expression faire le jardin literally translates to "to do the garden," but it is the standard way to say "to do the gardening" or "to garden." The versatile verb faire (to do/make) is used for many activities and chores like this.

Why is fait spelled with a "t" at the end here?

Fait is the form of the verb faire used for il, elle, and on (he, she, and one/we). Since Mon grand-père acts as a "he" (il), we use fait. For "I" and "you", the verb would end in an "s" (je fais, tu fais).

Would it be wrong to say "ma grand-père"?

Yes, it would be incorrect! Because grand-père is a masculine person, you must use the masculine word for "my", which is mon. You only use ma for feminine people or nouns, like in ma grand-mère (my grandmother).

Why is there a hyphen in grand-père?

In French, words for extended family members like grandfather (grand-père) or grandson (petit-fils) are compound words that are always joined by a hyphen.