In french what is the difference between and when used in future sera là-bas pendant deux il pour

You're asking about the difference between "il" and "pour" in the future tense phrase "sera là-bas pendant deux il / pour". Let's break it down:

"il" is incorrect in this context. It's the third person singular pronoun for "he/she/it," and it doesn't make sense in this sentence.

"pour" is the correct word. It means "for" in English and indicates a duration of time.

Here's the corrected sentence:

* Sera là-bas pendant deux pour.

This translates to: "He/She/It will be there for two (something)."

To make the sentence complete, you need to specify the unit of time after "pour":

* Sera là-bas pendant deux jours. (He/She/It will be there for two days.)

* Sera là-bas pendant deux semaines. (He/She/It will be there for two weeks.)

Remember: "il" is used for pronouns, and "pour" is used to indicate duration in this context.