Fr3 "EN"

EN will go in the same place as a direct object pronoun, an indirect object pronoun AND "Y".

It goes BEFORE THE CONJUGATED VERB unless you have AN INFINITIVE or a POSITIVE COMMAND

please accept that 'de' can be DE LA/DU/DE L' and DES

*je parle de mes vacances

*nous avons beaucoup de questions

*qui a besoin du chocolat

please accept that DES is ALSO the plural of un/une (and 2,3,4 are also plural forms of un....une....)

therefore.....

EN can and will be used to replace a place/thing that comes AFTER a number. you will NOT have the word 'DE' in this situation

THE NUMBER STAYS BEHIND. 'EN' WILL ONLY REPLACE THE place/thing

j'ai acheté des livres = I bought some books

becomes j'en ai acheté (I bought some)

j'ai acheté un livre = I bought a/one book

becomes j'en ai acheté un (I bought ONE of 'em)

je mange des haricots verts = I'm eating some green beans

becomes j'en mange = I'm eating some/some of 'em/'em

je mange 3 haricots verts = I'm eathing 3 green beans

becomes j'en mange 3 = I'm eating 3 of 'em