Simple continuous tense indicates the action that is being done now.

We are working now.

We're working.

The composition of the general continuous tense: be+ present participle.

It's raining hard. It's raining hard.

Are you studying now? Are you studying?

They are watching TV. They are watching TV.

The word segmentation method is as follows:

Generally speaking, -ing is added directly after the verb prototype.

Ask for a job, watch printing, learn to speak and spell at a rainy station.

Verbs ending in the silent e, go to -e and add -ing.

Here we go. Take the fire ring and write Breathe and leave.

Monosyllabic words with closed syllables, or polysyllabic words with stressed closed syllables, when there is only one consonant at the end of these words, double this consonant and add -ing.

Sit, run, cut, stop and start planning, if you allow.

Usage of simple progressive tense:

1) The general continuous usage indicates the actions that are taking place or in progress when the speaker speaks. It pays attention to the actions that are now in progress, regardless of the start and end time of the actions.

What are you doing now?

What are you doing?

I'm looking for my keys.

I'm looking for my keys.

The workers are building a big library.

The workers are building a big library.

2) The simple continuous tense indicates that an action has been going on for a period of time, and maybe this action has not been carried out yet.

The students are preparing for the exam.

The students are preparing for the exam.

3) The present continuous tense of some verbs can indicate upcoming actions, such as arrival, arrival, departure, and start.

They are going to Hong Kong tomorrow.

They are going to Hong Kong tomorrow.

I'm coming. I'm coming.