How does Latin future tense work in the first two conjugations?

The future tense sign, usually -bi- was inserted between the present stem and the personal endings. See Latin Present Tense for the table of personal endings, (m is the personal ending for ego/first person singular, when o isn’t present).

SingularPlural
1st Person-bō-bi-mus
2nd Person-bi-s-bi-tis
3rd Person-bi-t-bu-nt
Conjugation of Laudere:
SingularPlural
1st Personlaudābōlaudābimus
2nd Personlaudābislaudābitis
3rd Personlaudābitlaudābunt
Conjugation of Monere:
SingularPlural
1st Personmonēbōmonēbimus
2nd Personmonēbismonēbitis
3rd Personmonēbitmonēbunt

How do we translate the future tense into English?

The Latin future tense can be translated as will ( or something shall).

What is the future indicative in third conjugation?

SingularPlural
1st Person-am-ēmus
2nd Person-ēs-ētis
3rd Person-et-ent
Conjugation of Agere:
SingularPlural
1st Personagamagēmus
2nd Personagēsagētis
3rd Personagetagent

Future Indicative 4th Conjugation & -iō verbs of the 3rd

SingularPlural
1st-iam-iemus
2nd-ēs-ietis
3rd-et-ient
Conjugation of Audīre:
SingularPlural
1st Personaudiamaudiēmus
2nd Personaudēsaudiētis
3rd Personaudietaudient

Conjugation of Capere:

SingularPlural
1st Personcapiamcapiēmus
2nd Personcapiēscapiētis
3rd Personcapietcapient