Present Continuous and to be going to

What is present continuous?
What is to be going to?

Present Continuous tense is:

Positive: S + to be + Verb 1 + Ing 

Example:
I am studying English language
We are cleaning the car
She is writing a letter

Saya sedang belajar bahasa Inggris
Kita sedang membersihkan mobil
Dia (pr) sedang menulis surat

Negative: S + to be + no + Verb 1 + Ing

Example:
I am not studying English language
We are not cleaning the car
She is not writing a letter

Saya tidak sedang belajar bahasa Inggris
Kita tidak sedang membersihkan mobil
Dia (pr) tidak sedang menulis surat

Interrogative: to be + S + verb 1 + Ing

Example:
Am I studying English?
Are we cleaning the car?
Is she writing a letter?

Apakah saya sedang belajar bahasa inggris?
Apakah kita sedang membersihkan mobil?
Apakah dia (pr) sedang menulis surat?

The present continuous expresses the activity happening at the moment or the activity is happening at that time.
Present continuous digunakan untuk menyatakan kejadian yang sedang berlangsung.

Question words
You can add Question Words for interrogative sentences.

Example:
What is he doing there?
Apa yang sedang dia (lk) lakukan disana?

Who is cleaning the my car?
Siapa yang sedang membersihkan mobil saya?

Where is she going?
Sedang mau kemana dia?

Notes:
Question Words
Why, When, Who, Where, What and How


To be Going To

To be going to is similar to present continuous tense

Example:
We are going to attend her wedding party
We are going to clean the dish 
I am going to clean my laundry this afternoon
She is going to call the police

To be Going To is to express the future, instead you are going to do it soon.

To be Going to digunakan untuk menyatakan pernyataan yang akan kita kerjakan dalam waktu dekat

Contohnya:
Kita akan menghadiri pesta pernikahannya
Kita akan membersihkan piring-piring kotor
Saya akan membersihkan pakaian kotor saya siang nanti
Dia (pr) akan memanggil polisi


Thanks