"讲说"的英语是 "to speak" 或 "to talk".

"speak" 是一个动词，意思是"说话"， 例如：

He speaks Engpsh fluently. (他流利地说英语。)
Can you speak up a bit? I can't hear you. (你能说大声一点吗？我听不到你。)

"talk" 也是一个动词，意思是 "谈话"， 例如:

We had a talk about our future plans. (我们谈论了我们的未来计划。)
Let's talk about it later. (咱们等会儿再谈。)

这两个词都是来自古英语，"speak" 来自古英语"sprecan"， "talk" 来自古英语"talc"。