I agree that this is confusing, Liz. It sounds like the male voice on Duolingo pronounces the 'ir' at the end of escribir differently than does the female voice. The male sounds like 'eer' while the female sounds like 'eed'. I think the female voice is more accurate as to how this is supposed to sound.
Because it’s an infinitive, and is actually part of the object of the verb not the verb itself.
Broken out more concretely:
- ‘Yo’ is the subject (and is optional as usual in Spanish)
- ‘necesito’ is the verb
- ‘escribir en español’ is the object, in the form of a noun phrase
Functionally, this is just like how the English sentence requires ‘to’ before ‘write’. In (almost) any case where you need ‘to’ before a verb in English, it’s an infinitive, and will end in a vowel followed by an ‘r’ in Spanish unless it’s an irregular verb.
escribir = "(to) write"
It is a regular -ir verb, so you can follow the rules for conjugation.
Here's a link for more information:
How on earth can I learn if in stuck and can not anwer? This is BECOMING a bit redundant!!!!!!!wheres my points ,and IM tiered of quitting like a whimp when im want to continue what i started cancel, then I'm still STUCK, CAN U PLEASE DO SOMETHING TO FIX THIS PROBLEM ITS NOT RESCESS IT IS TIME TO WORK!!@@-