Grammar I

have      - Finite Verb
to have  - Infinitive

- Finite Verb is limited verb for subject because of such is the first verb without "to" in the sentence. and the name of finite verb is background from infinitive. well, if the word verb stand it self it's meant not tobe used in the sentence. just to use the word "to" ahead of verb such is called as infinitive but if infinitive is placed after subject, adverb or aux. verb the word "to" is not used anymore, not tobe called as infinitive but it's called as finite verb.

Example :
infinitive
I want to have a house first before getting married

infinitive verb
to have : mempunyai
verb


Be

Tobe

Verb

The Reference: a) to use the word "be" is used in Present Future Tense/Past Future tense to come down the word adj,adv, or noun. If the word "be" is placed ahead of the word adjective, such is meaningless and if the word "be" is placed ahead of the word adverb of place to carry along meaning "ada/berada" also if the word be is placed ahead of the word noun as occupation to carry along meaning "jadi/menjadi".

b) to use the word "be" is placed  after subjunctive to comedown the word adj, adv, or noun.

c) to use the word "be" is used in imperative sentence to comedown the word adj,adv, or noun.

Example:

Saya Akan menjadi seorang guru bahasa inggris jika saya menguasai Bhs inggris dengan baik nanti

BA I shall be the English Teacher if I master English well next

BAA I am going to be the English Teacher if Iam mastering english well next

AA I am gonna be the English Teachel if I master english well next