Learn French: Vous allez souvent à Londres ?

In French, the preposition à (to/at/in) is used before cities, like Londres (London) or Paris. If you were talking about going to a country instead, you would use en, au, or aux depending on whether the country is masculine, feminine, or plural.

Why is souvent placed right after allez?

In French, short adverbs like souvent (often) are placed immediately after the verb. While in English you might say "you often go" or put the word "often" at the very end of the sentence, French keeps it locked right after the verb: vous allez souvent.

Why does London end in an "s" in French (Londres)? Is it plural?

No, it is not plural! Londres is just the traditional French name for London. Many major European cities have their own unique French names and spellings, and this one just happens to end in an "s".

There is no est-ce que here. How do we know it is a question?

In everyday spoken French, you can turn a regular sentence into a question simply by raising the pitch of your voice at the end. The standard statement Vous allez souvent à Londres becomes a question just by adding that rising tone when you speak, and a question mark when you write!