Present tense. Again. First, you learn there is/are, have/has got, am/is/are, like/don't like, likes/doesn't like. Then, the same stuff plus am/is/are+ing, and possibly have done. The next year, you once more review all previously covered structures and learn have been doing, am/is/are done. Following that, they teach you again all the tenses you've learnt so far and some new concepts such as have being done. And you're like "will I ever learn all Present Tenses in English?"🫤 Suddenly your teacher says: "Present Continuous is also used for Future arrangements". And you go "WHAT?" Another teacher (like me) says that in fact technically there is no Future tense in English. Your world will never be the same again after you hear this phrase. You might even start thinking that it's not possible to learn all English Grammar. 💪But DON'T GIVE UP! It's easier than you might think. Keep working! #grammar