Intermediate › Grammar
Intermediate 📝 Grammar
Complex sentences
Join ideas with although, while, since, unless, as soon as, even though, whereas.
1Learn
Goal: Join ideas with although, while, since, unless, as soon as, even though, whereas.
A complex sentence has a main idea and a dependent idea joined by a linking word. Although / even though = contrast. While / whereas = comparing two things. Since / as = reason. Unless = if not. As soon as / until / once = time. Put a comma after the dependent part if it comes first: “Although it rained, we went out.”
2Examples
Although it was late, we kept talking.
I’ll wait until you finish.
Unless you hurry, you’ll miss the bus.= if you don’t hurry
Since it’s Sunday, the shops are closed.Reason
Call me as soon as you reach.
Kochi is busy, whereas Kollam is calm.
3Common mistakes
Although it rained, but we went out.
Although it rained, we went out. — not both
Unless you don’t hurry…
Unless you hurry… — unless already means ‘if not’
I’ll call you when I will reach.
I’ll call you when I reach. — no will after when
4Practice quiz
Question 1 of 5Multiple choice
___ I was tired, I finished the work.
5Speaking challenge
Speaking challenge
Give a 1-minute opinion about your city using although, whereas, since and unless.
0:30
Say it out loud. Nobody is listening — that’s the point. Mistakes are allowed.
Finish this lesson
Do the practice quiz above, then mark it complete.