Japanese verbs do not change according to who does the action. However, they do change according to tense (when an action happens), whether one is saying an action happened or didn't happen, and various other things (to be discussed below).
There are three types of verbs. Godan, ichidan and Irregular.
[Godan][]
The plain form (also known as the -u from), is the main form for verbs to have, vowels can change as conjugations, to attach suffixes into the verbs.(ex: to say "i desire to drink". take nomu, convert it into nomi, and attach it into tai, getting "nomitai")
| Verb conjugation | Plain suffix | a form suffix | i form suffix | te form suffix |
|---|---|---|---|---|
| bu | -bu | -ba | -bi | -nde |
| gu | -gu | -ga | -gi | -ide |
| ku | -ku | -ka | -ki | -ite |
| mu | -mu | -ma | -mi | -nde |
| ru | -ru | -ra | -ri | -tte |
| su | -su | -sa | -shi | -shite |
| tsu | -tsu | -tsa | -chi | -tte |
| u | -u | -a | -i | -tte |
Ichidan[]
these work differently than godan, these are easier, since it just needs to drop the ru to conjugate them. (i desire to eat: take taberu, drop the ru, replace it with tai.)