Yo siempre digo la verdad.
You can use any form of the verb, but it has to be indicative. I have used the <u>present form</u> (the most used in these cases) of the verb "decir" (say).
<h3><em><u>MissSpanish</u></em></h3>
I speak Spanish but I don’t get what it’s trying to make you do but I have a bit of idea
1) Abrir las ventanas
2) Comer un sándwich
3) Recibir un regalo
4) Correr en el parqué
5) Vender esos pantalones
Hope I helped a little
