English Classroom (Engels Klaslokaal, engelsklaslokaal.nl) is a free English grammar and practice site run from the Netherlands. The site is bilingual — Dutch for the local audience, English for the international one — but the practice material targets English learners in general.

The site is organized around three main areas:

• Grammar exercises — verb forms (simple tenses, perfect tenses, continuous, modals, passive, conditionals, mixed), plus miscellaneous topics like articles, possessives, conditionals, and word order.
• Contrastive verb form exercises — the site's signature: choosing between two tenses in context (e.g. Simple Past vs. Past Perfect, Present Perfect vs. Past Simple). This is much harder than typical gap-fill work.
• Listening and cultural content — TED Talk comprehension questions, YouTube English literature clips, and quizzes on Shakespeare, Christmas, the US elections, and Great Britain.

It's not flashy. The design is a basic WordPress theme with no animations. But the grammar content is unusually thorough, and the contrastive exercises in particular are the kind of work that most free ESL sites skip.

Where English Classroom actually helps in a real teaching setup:

• Homework for B1+ students: the contrastive verb form exercises are perfect take-home practice. Students can't just guess from context — they have to know the rules.
• Listening warm-ups: the TED Talk section has 5 curated talks with comprehension questions. Drop one in as a 10-minute opener.
• Self-study between classes: free, no signup, no tracking. Send a struggling intermediate student the link with a specific page to work on.
• Cultural lesson supplements: the Shakespeare, Great Britain, and Christmas quizzes work as short 10-15 minute lessons when you need a break from grammar.
• Diagnostic checks: the mixed tenses section is a brutal-but-useful way to find out where a student actually stands on tenses.

Yes — with the right audience in mind. English Classroom is not for beginners, not for kids, and not for teachers who want ready-to-print thematic lesson plans. For B1+ students who need real grammar work, especially verb form contrast, it's one of the strongest free resources on the open web.

The site is what it is: a focused grammar and listening site run by someone who clearly cares about the quality of the exercises. It's not going to win design awards, but the content does the work.

Honest recommendation: bookmark it as your go-to for verb form contrast practice and TED Talk listening. For everything else — themed lessons, kids content, classroom games — pair it with the alternatives below.