Because it was late, we started.

Although it was late, we finished.

We finished the project, and celebrated.

We finished the project.

The dog barked.

I wanted tea, but she wanted coffee.

When the mail arrived, the dog barked.

The sun set.

The dog barked.

We finished the project.

The dog barked when the mail arrived.

The sun set and the sky turned pink.

Complex sentence

Run-on sentence

Compound sentence

Simple sentence

I cooked dinner and watched TV.

I cooked dinner, and she cleaned the kitchen.

Because it rained, we stayed inside.

I cooked dinner.

Although it was bright, the room was cold.

The cat slept.

Because she was late, she missed the bus.

The cat slept and purred.

We postponed because the sky was dark.

Because the sky was dark, we postponed.

We postponed.

The sky was dark, we postponed.

I read a book.

Although it stormed, I stayed home, and I read.

The rain stopped.

The rain stopped and the street dried.

When the bell rang, class started.

The bell rang and the students cheered.

The bell rang.

We waited.

The rain stopped and the street dried.

The street dried.

The rain stopped.

Because it rained, we stayed inside.

The sun shines and the moon glows.

Because I was late, I missed the bus.

Although it rains, we stayed indoors.

The sun shines.

Although tired, she continues.

If you hurry, you’ll catch the bus.

When the rain stops.

She reads, and he writes.

Although tired, she finished her homework.

She reads and writes.

The rain stopped; the streets dried.

The cat slept.

The train arrived late, but we were ready to go.

Because the bell rang, students left the hall.

Birds sing in the morning.

Birds sing in the morning, and people greet the day.

Trees bent in the wind, and leaves fell.

Because the wind blew hard, the trees bent.

The wind blew hard, and the trees bent.

The wind blew hard.

I finished my coffee, and I left the cafe.

The cat slept beside the window.

He woke late, so he missed breakfast.

The cat slept beside the window.

Because it was raining, we stayed home.

Although tired, she finished the run.

The book on the table.

I wanted coffee, but the cafe was closed.

Compound

Complex

Run-on

Simple

The dog barks loudly.

The dog barks loudly, and the cat hides.

The dog barks loudly when the mail arrives, and the mailman smiles.

The dog barks loudly because it woke us up.

We went to the park because it started to rain.

Although we went to the park, it started to rain.

We went to the park.

We went to the park, and it started to rain.