Introduction to Verbs, Dictionary Form, ます-Form
る-Verbs end in the character る.
う-Verbs end in the character う.
Some う-Verbs, such as 知る（しる） and 帰る（かえる）, may seem like る-Verbs because they end with the character る but are in fact う-Verbs. This mean that when they are conjugated into ます-Form, the final る character is not simply dropped and replaced with ます, but rather, the る character is dropped and replaced with ります, resulting in such ます-Form verbs as 帰ります（かえります ） and 知ります（しります）.
The irregular verbs する and 来る（くる） exhibit behavior that makes them divergent from the regular guidelines of conjugation. The ます-Forms of these two verbs are します and 来ます（きます）respectively.
The Pre-ます-Form is simply the portion of the verb that derives from dropping the “ます” at the end of the ます-Form. All Pre-ます-Forms of verbs end in either い or え.
When the Pre-ます-Form of a verb ends with え, the verb is a る-Verb. To get the Dictionary Form of the verb, simply add る after the え.
When the Pre-ます-Form of a verb ends with い, the verb can either be an う-Verb or a る-Verb. If it is an う-Verb, drop the い and replace it with an う to get the Dictionary Form of the verb . Conversely, to get the ます-Form from the Dictionary Form, drop the う and replace it with います.
When the Pre-ます-Form of a verb ends with い, the verb can either be an う-Verb or a る-Verb. If it is an る-Verb, drop the い and replace it with an う to get the Dictionary Form of the verb . More intuitively, this is the same as dropping the り and replacing it with a る. Conversely, to get the ます-Form from the Dictionary Form, drop the るand replace it with ります.
The Dictionary Form and the ます Form can be an indication of a present state or future and habitual activity.
The ます form is used in polite speech and can be an indication of a present state or future and habitual activity.
Ima Togashi-sensei wa doko ni irasshaimasuka?
(Where is Togashi-sensei?)
Ima Togashi-sensei wa studio ni irasshaimasu.
(Togashi -sensei is in the studio.)
Ashita nani wo shimasuka?
(What are you doing tomorrow?)
Ashita, Hunter x Hunter wo mimasu.
(Tomorrow I am going to watch Hunter x Hunter.)
Manga wo yoku yomimasuka?
(Do you read manga a lot?)
Hai, manga wo yoku yomimasu.
(Yes, I read manga a lot.)