He taught me how to swim.这里为什么不用teach啊,为什么用过去式啊?

He taught me how to swim中不定式的成分 Will you teach me how to swim and skate?为啥用and,咋不用or? Nobody taught him how to swim;he taught h_. Can you teach me to swim?为什么是填to swim? 这里为什么不用过去式.slowly and painfully ,he began to tell his story. He is junior to me by two years.他比我小两岁,在这里为什么用by,不用别的介词? 为什么用taught而不用having been taught? he is like a father to me 这里用to 不用for为什么,像这样汉语感觉可以用for而用了to怎 英语同义句转换 He taught me how to surf.= He taught me how ____ ___ can you please teach me how to make popcorn 为什么要加to he taught me how to read the word.其中how to read the word算是直接 Can you give me some ____about how to do it 为什么用advice 不用ide