Please can you check the following, thankyou.

je vais acheter
tu vas acheter
il/elle acheter
nous allons acheter
vous allez acheter
ils/elles vont acheter

je acheterai
tu acheteras
il/elle achetera
nous acheterons
vous acheterez
ils/elles acheteront

i have to do the same for faire, arriver, boire, commencer, descendre, aller, vendre, finir, habiter, regarder, louer and manger.

would i add ai, as a, ons, ez, ont onto the words as above?

il/elle acheter will be il/elle VA acheter

je acheterai will be written j'acheterai

thank you

To conjugate French verbs in the future tense, you need to add specific endings to the verb stems. Here's the conjugation breakdown for the verbs you mentioned:

For "faire" (to do/make):
je ferai
tu feras
il/elle fera
nous ferons
vous ferez
ils/elles feront

For "arriver" (to arrive):
je arriverai
tu arriveras
il/elle arrivera
nous arriverons
vous arriverez
ils/elles arriveront

For "boire" (to drink):
je boirai
tu boiras
il/elle boira
nous boirons
vous boirez
ils/elles boiront

For "commencer" (to begin):
je commencerai
tu commenceras
il/elle commencera
nous commencerons
vous commencerez
ils/elles commenceront

For "descendre" (to descend):
je descendrai
tu descendras
il/elle descendra
nous descendrons
vous descendrez
ils/elles descendront

For "aller" (to go):
je irai
tu iras
il/elle ira
nous irons
vous irez
ils/elles iront

For "vendre" (to sell):
je vendrai
tu vendras
il/elle vendra
nous vendrons
vous vendrez
ils/elles vendront

For "finir" (to finish):
je finirai
tu finiras
il/elle finira
nous finirons
vous finirez
ils/elles finiront

For "habiter" (to live):
je habiterai
tu habiteras
il/elle habitera
nous habiterons
vous habiterez
ils/elles habiteront

For "regarder" (to watch):
je regarderai
tu regarderas
il/elle regardera
nous regarderons
vous regarderez
ils/elles regarderont

For "louer" (to rent):
je louerai
tu loueras
il/elle louera
nous louerons
vous louerez
ils/elles loueront

For "manger" (to eat):
je mangerai
tu mangeras
il/elle mangera
nous mangerons
vous mangerez
ils/elles mangeront

In each case, you replace the infinitive ending (-er, -re, -ir) with the appropriate future verb ending. The endings are: -ai, -as, -a, -ons, -ez, -ont.

Remember, the future tense is used to talk about actions that will happen in the future.