Go: the present simple use the infinitive (used for words such as I, You, We, They)
Eg: I need to go and wash the dishes.
Goes: present simple third person/voice. Best way to explain this is an habitual action (used with He, She, It)
Eg:He goes to the car wash once a week.
For an example of the difference:
I “go” to the market.
She “goes” to the market.
