Future: Irregular Verbs: 'Decir'
Spanish: Cambridge International GCSE, topic 10.1.8
'Decir'
'Decir' in the future is irregular, The 'ec' is removed from the infinitive. ‘Decir’ has the same irregular stem in the conditional.

Diré - I will say

Dirás - you will say (singular)

Dirá - he/she will say / you will say (formal)

Diremos - we will say

Diréis - you will say (plural)

Dirán - they will say / you will say (plural)
Test yourself on Future: Irregular Verbs: 'Decir'
How do you say 'you will say' in Spanish?