Simple Future TenseUsage: Simple Future Tense is used to express something will happen (or be predicted) in the future time. Therefore, Plan is included in this tense.
I will be there tomorrow.
In English Lessons, the sentence above modifies something will happen in the future tense: /will be there/ and the sentence is emphasized by the adverb of time /tomorrow/.
To express future action, we also use the pattern of progressive tense.
I am leaving for a journey tomorrow.
The sentence includes future action /be + leaving for a journey/ and /tomorrow/. However, the adverb of time can not be the priority to express future action.
Besides, we can build a future action by using one of the members of Modal Auxiliary, such as will or shall or the synonym: be + going to + bare-infinitive.
Future in Nominal PatternIn English grammar, talking about pattern will be faced to two main patterns, they are: Nominal and Verbal Pattern. In Nominal pattern, future tense will be like this:
Subject + Will/Shall + be + non-verbs
Take notice that non-verbs in this case is, such as, noun, adjective, noun phrase, adverb or pronoun.
I will be here. (/here/ is adverb of place)
We shall be on time. (/on time/ is adverb of time)
I will be yours someday. (/yours/ is pronoun - possessive adjective)
Future in Verbal PatternFuture in Verbal Pattern will place the infinitive (Bare-Infinitive) as a center of the pattern which will be combined to modal auxiliary /will/ or /shall/.
Subject + Will/Shall + Bare-Infinitive
She will marry me soon.
Andi will go shopping with Anne tomorrow.