English can be heard nearly everywhere on the planet, but mainly among scholars and knowledgeable individuals. What’s more, English is considered to be the language of film, TV, pop music and the computer world, and the media world.
The notion of an universal Language is important just now, in the age of world mass communication. Before this age Greek, Latin, French were to some extent worldwide languages, though mostly in Europe.
By a lucky coincidence as a result of variables above, this universal language belongs to the most straightforward and easiest natural languages on the planet. The only other easy and straightforward languages are the built ones.
Not mentioning that verb conjugation is simple and very easy. Regular verbs have just four types: Infinitive + Present, Past Tense + Past Participle, 3rd person singular Present Indicative, Present Participle.
There are virtually no Inflections. No gender or number inflection articles, for adjectives, adverbs. For adjectives there's merely comparative and superlative, practically just amount for nouns.
English is among the most analytic languages, with no major agglutinative, fusional or artificial features.