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Me gusta viajar
Sí, me gusta viajar muchísimo ! (If you enjoy it a lot)
(If less, you could omit 'muchisimo', and even 'viajar')
No, no me gusta (viajar). (If you don't enjoy it/travelling)
Its viajar travel in spanish is viajar
viajar means travelViajar in Spanish means to travel
Podem isn't Spanish. It's Portuguese for he/she/it/you can. The word in Spanish is pueden.