There has never been a better time to learn a second language. If English is your native tongue, there are three Robotel.com languages that might be easier to learn: Spanish, Portuguese, and French.
It probably comes as no surprise that Spanish is maybe the easiest language for native English speakers to learn as a second language. The Spanish and English languages differ only word formation (morphology) and pronunciation (phonology). They share the same alphabet (albeit Spanish has two extra letters) and both have similar pronunciations. Grammatically, Spanish is probably the easiest of all the Romance languages to learn.
It is also, perhaps, one of the most beneficial languages for a native English speaker to learn as Spanish is the fourth most spoken language in the world (falling behind Chinese, Hindi, and then English). If you are a globetrotter, you will be happy to know that Spanish is the official or national, widely spoken language in at least 44 countries; and that includes the United States. As a matter of fact, the United States has recently been named the second-largest Spanish-speaking country in the world.
Portuguese and Spanish are very similar in modern use; and they share linguistic roots, of course. So if Spanish is, perhaps, the easiest language for a native English speaker to learn, then Portuguese probably would be pretty easy too. One thing that English speakers might appreciate about Portuguese is that they are both similar in their interrogative forms (which do not require sentence restructuring; rather relying on inflection and intonation). For example, you can turn “We’re having steak tonight” into a question simply by ending the phrase with an upward inflection (the vocal question mark).
Unlike Spanish, though, Portuguese is not quite as common throughout the world. There are maybe 176 million speakers and the language is the official one of 9 countries including not only Portugal and Brazil, of course, but also some countries in Africa, if you can believe it.
French is easy for English speakers to learn not because they are similar—they are quite dissimilar—but because they are intertwined historically. The 11th century Norman invasion of England began the infusion of French-speaking government officials into the otherwise English society. This began an evolution which has resulted in English and French sharing a lexicon.
There are more than 75 million people who speak French, with another 190 million who have learned it as a second language. It is the official language of more than 40 countries and commonly spoken in at least 54 countries around the world