Although he is vevy busy,but he often helps us.哪里错了?

Although he is vevy busy,but he often helps us.哪里错了?
Although he is vevy busy,but he often helps us.
哪里错了?

Although he is vevy busy,but he often helps us.哪里错了?
although跟but不能用在一起
用了although就不用but,用了but就不用although
though跟although一样都不能跟but连用

although和but不能同时用

Although和but不能放在同一个句子中

although 后面不能加but，可以改成yet

although不可与but一起用
不像中文的虽然 但

英语中尽管…………但是…………不能同时出现
Although he is vevy busy, he often helps us.
he is vevy busy,but he often helps us.