I believe;I do believe有什么区别

问题描述:

I believe;I do believe有什么区别

do起强调的作用,加强语气.是对句子动词进行的强调.一般现在时用do (does ).一般过去时用did.例如 :
I did finish the work yesterday .我昨天确实完成了工作.
Do finish your homework by yourselves.一定要独立完成任务.