Question

Yo siempre _______ la verdad.

Answer 1

Digo.

Step-by-step explanation:

Yo siempre digo la verdad.

Answer 2

Yo siempre digo la verdad.

You can use any form of the verb, but it has to be indicative. I have used the present form (the most used in these cases) of the verb "decir" (say).

MissSpanish