1. Present tense
Rumus : Subject + s/ es + Object
contoh : a. I write a letter
b. I writes a letter (present tense)
c. I do not write a letter (Present bentuk negatif)
d. Do I write a letter? (Present bentuk introgatif)
2. Present continous tense
Rumus : Subject + to be + V ing + Object
contoh : a. I write a letter
b. I am writting a letter (present continous tense)
c. I am not writting a letter (Present continous bentuk negatif)
d. Am I writting a letter? (Present continous bentuk introgatif)
3. Present Perfect tense
Rumus : Subject + Have/ Has + V3 + Object
Contoh : a. I write a letter
b. I Have written a letter
c. I have not written a letter
d. Have I written a letter?
4. Present Perfect Continous
Rumus : Subject + have/ Has + been + Ving + Object
contoh : a. I write a letter
b. I have been writting a letter
c. I have not been writting a letter
d. Have I been writting a letter?
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