The next generic verb of motion is идти. Note especially its irregular past tense forms.

Идти is more specialized than ходить in that it always talks about motion in progress toward a particular place. Because of that “in progress” bit, we can often translate it as “heading to” or “on the way to”:

Although adverbs of frequency and phrases of frequency (like часто and каждый день) usually trigger an indeterminate verb, if the situation describes something that happens regularly on the way to a place, then you use the determinate verb идти:

One of the curious uses of determinate verbs is that they can be used to say how long it takes to get to a place. From the English-speaking point of view, that is rather odd. After all, getting to the place implies a completed action, so we should use a perfective verb, right? But from the Russian point of view in these sentences they are indicating how long the process takes, so the imperfective works:

The word долго means “for a long time,” but it's not the same as давно. Now here is a subtle bit. If an activity has been going on for a long time, but you don't really think of it in terms of starting “a long time ago,” then you use долго instead of давно:

Some people will sloppily translate a sentence like «Мы долго ехали из Москвы во Владивосток» word for word as “We were riding from Moscow to Vladivostok for a long time,” but it's better to paraphrase the sentence thus: “It took a long time to go from Moscow to Vladivostok.” Other examples:

It's possible to find долго and давно in similar-looking past tense sentences, but their meanings are quite distinct:

The word уже means already. Be careful to get the stress right because if you say уже that means narrower.

When уже combines with the negative particle не, we translate the combination into English with the phrases “no longer” or “not anymore.”

The Russians use уже much more than the English speakers use the word already, and very often the meaning is somewhat attenuated. That kind of “faded” уже is sometimes captured by the word “now” or “really,” and sometimes it's best left simply untranslated.

One last quirk is that уже is sometimes shortened into уж. There is also a noun уж that means “grass snake.” So how do you tell when the Russians mean “already” and when they mean “grass snake”? Frankly, if you can't tell the difference between those two things in context, you aren't smart enough to study Russian. Consider switching your major to French.