It's a good point. Just as there is a difference in many countries with these fruits, sometimes in some places, as others have indicated, the two lexemes are synonyms. Similarly, tomate and jitomate are distinguished in places such as in the central-southern parts of Mexico the former is green (what we call tomatillos) while the latter is the red variety we call tomatoes. Here's a link to that topic: http://www.raecrothers.ca/blog/mexican-spanish-peculiarities-tomate-and-jitomate/
English has words that work as either a noun or an action as well. E.g. you can run (an action), or you can go for a run (a noun). You can go shopping (a verb), or you can help carry the shopping (aka the groceries - a noun - I think this is more commonly used in British than American English). You can usually tell if it's a noun or a verb by how it's used in the sentence. In this case, with the nos in front, it must be the verb, "he/she/it buys us [something]".
Hope that helps!
Plantains are a type of banana (all types are of the genus musa). They're commonly called "cooking bananas", while the sweet type can be called "dessert banana" for disambiguation.
There are regional differences for how various types of bananas are called in each Spanish-speaking country.
It's not that simple. It mainly depends on where you're from. In Spain you call them all plátano. In most LatAm places, plátano is usually reserved for cooking bananas while dessert bananas are called banana or banano. But there are more terms going around. This table gives a good overview.
Although I got this answer right by translating platanos (no accents on my keyboard) as plantains, there was an alternative answer of bananas. I started to write more, and then thought to read the other comments first. The different perspectives are particularly helpful because I am traveling to Guatemala in April. One less word to be confused about thanks to this discussion list.
Priscila, I'm not exactly sure what you're asking. What other form do you expect?
It's "buys" and not "buy" because the mom is a 3rd person. 3rd-person present-tense verbs generally get an '-s' suffix in English.
It's "buys" and not "bought" because this is a present-tense sentence. Compra is a present-tense conjugation; the past-tense form would be compró or compraba.
It's "buys" and not "is buying" because we're talking about a habitual event - she always does this, not just once. English usually uses the Simple Present to talk about habitual events.
The conjugation of a verb depends the subject, the person(s) or thing(s) performing the action.
"[Ellos/ellas] compran" is "they buy" (or "[ustedes] compran", "you (plural) buy") regardless of how many things they are buying. Since mamá is just one person you need the singular "el/ella" conjugation, "compra", no matter how many things she buys.
"So you see a bunch of what looks like bananas, but they’re bigger, bright green, and thick-skinned. If you’ve ever raised an eyebrow at this shady looking banana imposter in your market or grocery, your suspicions are correct. These aren’t bananas, they’re plantains.
Plantains are members of the banana family, but they are starchier and lower in sugar, which means that when they are ripe, they will still be green in color. If you get them when they are overripe, they may have started to turn yellow or black. While a banana makes a great, raw on-the-go-snack, plantains aren’t usually eaten raw because of the high starch content.
Native to India and the Caribbean, plantains serve an important role in many traditional diets.When used in cooking they are treated more like vegetables than fruit. You’re most likely to encounter them at your favorite Latin, African, or Caribean restaurant baked, roasted or fried up in the form of a delicious savory side."