To give a real answer, you need to specify who is visiting the grandparents, because the conjugation of the ver "visitar" is different for each "person". "I visit my grandparents" is "visito mis abuelos", but "We visit my granparents is "visitamos mis abuelos".
asisti/asististe//asistió al entierro del abuelo
(I/you(informal)//he/she/you(formal) went to grandpa's funeral)
You might say "¿visitó tus abuelos?"
Abuelos.
Mexican is not a language. The way you say grandparents in SPANISH is abuelos for both or abuela for grandmother and abuelo for grandfather.
Translation: No tengo abuelos.
You could say "Sí, tienes abuelos."
"Queridos para siempre los abuelos."
"Great grandparents" in Spanish is "bisabuelos". It is pronounced "beese-ah-BWAY-los". Please see this site for confirmation of the translation: http://www.answers.com/library/Translations
eyos visitan
the grandparents = los abuelos
'No visito a mi familia con frecuencia' is 'I do not visit my family frequently' in spanish.
Cuándo te visito.
siguiente visita
This would be"Tres de mis abuelos están viviendo".