Quote Originally Posted by krwright13 View Post
I have a pretty good grip on the perfective/imperfective aspects of the verbs, I probably should asked the difference between the four verbs: идти, ходить, ехать, и ездить
идти, ехать - imperfective progressive
to be in the process of one-directional motion

ходить, ездить - imperfective iterative
to perform repetitive or multidirectional motion

progressive:
Я иду по городу. I am going along the city (right now and towards some destination).
Я иду в магазин. I am going to the shop (right now).

iterative:
Я хожу по городу. I am walking around the city (right now but without one destination, multidirectional)
Я хожу в магазин. I go to the shop (Usually or from time to time, repetitive)