"Yo suelo ir" meaning

Question

I see a translation of "Yo suelo ir" as "I usually go" but a translation of "suelo" as ground or floor. Is it an idiomatic phrase?

Answer

Hola Ubk,
yes, we have a special way to say "to usually do something" and it is idiomatic. We use the verb "soler" (conjugated) followed by the infinitive of the main verb:

Yo suelo nadar en la piscina los martes. 
I usually swim in the pool on Tuesdays.
Ella suele correr en el parque por la mañana.
She usually runs in the park in the morning.

So, it is not a literal translation from the English "usually do...", it is idiomatic.
Here is a lesson about "soler" in the present tense. Have a look here.
When we conjugate soler in the present for the yo form, this coincides with the word "suelo" meaning "floor/ground". It is a coincidence.
Saludos
Inma

Answer

How is it an idiomatic phrase, is it not literal? "Yo suelo ir..." ("I usually go...") what is idiomatic about it?

Answer

Hola Jonathan"Yo suelo ir" is not literally "I usually go". "Soler" is a verb and we conjugate it in the present (suelo, sueles, suele, solemos, soléis, suelen) while "usually" is an adverb that doesn't change. That's what I meant.Saludos