講英文，一共說(shuō) "English"。

English consists of twenty-six letters.

英文一共一百個(gè)字母。

英文中"一共"可以譯為"總共"或"整個(gè)"，而"多少"則表示問(wèn)數(shù)量。對(duì)英文總數(shù)進(jìn)行選擇時(shí)，一般需要對(duì)應(yīng)用法，所以回答您的問(wèn)題為：
英文中，對(duì)于總量的表述通常有 "總共有"（the total is、the whole is）或 "總共是"（the total of）等說(shuō)法。如果詢問(wèn)數(shù)量，如"多少"，可說(shuō)"how many"。若需指明數(shù)量，例如"一共多少"詢問(wèn)總數(shù)，可以參考如 "How total is it?"或"What number is it in total?"的格式。假如應(yīng)用到具體數(shù)字，則表述如 "How many apples are there in total?"。應(yīng)用于數(shù)值時(shí)，一般會(huì)說(shuō)"What is the total amount?", 或"The total figure could be how many?”。如果是按百分比計(jì)算，可能會(huì)說(shuō)"What percent of the total is it?"

英文可以說(shuō)成 "How many in total?" 或 "How many in all?"。

英文共有26個(gè)字母。