"Go and teach all nations" is an example of a sentence in the O imperative mood
O indicative mood
O infinitive mood
O subjunctive mood

Explanation:

The subjunctive mood is tricky and worth some discussion. Part of this is because in English we are rarely aware that we're using the subjunctive, but when we do, it expresses uncertainty, often a wish, desire, doubt, or hope.

Modern Romance languages such as Spanish, French, and Italian have retained verb form changes to express the subjunctive mood; those changes are less frequently seen in modern English.

A common example of the Latin subjunctive is found on old tombstones: Requiescat in pace. > May (s)he rest in peace.

The Latin subjunctive exists in four tenses: the present, imperfect, perfect and pluperfect. It is used in the active and passive voice, and it can change according to the conjugation. Two common irregular verbs in the subjunctive are esse ("to be") and posse ("to be able").

Additional Uses of the Latin Subjunctive

In English, chances are that when the auxiliary verbs "may" ("He may be sleeping"), "can, must, might, could" and "would" appear in a sentence, the verb is in the subjunctive. Latin uses the subjunctive in other instances as well. These are some notable instances:  

Hortatory and Iussive Subjunctive (Independent Clause)

The hortatory and iussive (or jussive) subjunctives are for encouraging or inciting actions.

I

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.

idk

explanation: