2. Learn and study phrases Many students learn vocabulary and try to put many words together to create a proper sentence. It amazes me how many words some of my students know, but they cannot create a proper sentence. The reason is because they didn't study phrases. When children learn a language, they learn both words and phrases together. Likewise, you need to study and learn phrases.
If you know 1000 words, you might not be able to say one correct sentence. But if you know 1 phrase, you can make hundreds of correct sentences. If you know 100 phrases, you will be surprised at how many correct sentences you will be able to say. Finally, when you know only a 1000 phrases, you will be almost a fluent English speaker.