Translation:Did you try?
The words "intend" and "intentar" sound very similar, and I am sure that they share a common root word. However, I looked up "intentar" in a Spanish-English dictionary and I only got "to try", "to attempt". I also looked up "intend," and "intentar" was not one of the choices given. So "intend" and "intentar" would be what are called "false equivalents".
In English, 'attempt' is a verb. If you said "Did you attempt," the listener would be confused because the sentence is incomplete. The listener would want to know what - "Did I attempt what?" So "Did you attempt" by itself is wrong, but any of the following would complete it: "Did you attempt [it | that | to | to do something ]?" Also, if you only want to refer to the attempt itself, you would say "Did you try?"
No, I don't think that "Intestante " exists. Here we are discussing "intentaste", it's second person singular, the "tú" form. Second person "intentasteis" is plural, the "vosotros" form. As I understand it vosotros verb forms are not used much outside of Spain. Instead the third person plural would be used to substitute for the missing second person plural. That would be "intentaron" in this case. Keep in mind these forms are all the Preterite (Simple Past).
It is a problem for me being a european and having to learn all existing forms of spoken spanish when i only wish for spanish of Spain. I am glad that i am introduced to the second person singular... Or else i will end up watching Maria la der barrio not being able to speak to any spanish people without making them wonder....
Though it would be nice to have the option to learn specifically regional language, I also appreciate the opportunities it opens to be more diverse. So I use this wonderful free app and supplement it with TV, videos and library books, as well as the websites that I see linked here. With those options I am well rounded and can also tailor my learning to the regional language I desire. I hope you find everything you need.
-aste is used for the informal second person in the preterite tense.
More info here: https://www.spanishdict.com/guide/spanish-preterite-tense-forms/
FULL DISCLOSURE: Native English speaker - US, Southern Appalachian dialect. Other uses of English may vary. Advice about Spanish should be taken with a grain of salt.