sleep well, have a good sleep

relaxed

go to work, be at work

overlap

wake up, get up

classroom, class – the people, the subject ~ the lesson, the lecture… social class, class A laser device; biology: mammals, reptiles…

gerund = ing form

semicolon=;

Although, However, etc.

He works hard, on the other hand, he doesn't have a lot of money.

He doesn't have a lot of money, however hard he works.

However hard he works, he doesn't have a lot of money.

Although he works hard, he doesn't have a lot of money.

Why are some cancers curable despite the fact that others are not?

Why are some cancers curable despite the incurability of others? (note: the word “incurability” does exist, just my spell checker didn't know that :-))

I like holidays in the mountains, whereas my wife loves the seaside.

In spite of the fact that I like holidays in the mountains, my wife loves the seaside.

I like holidays in the mountains. However, my wife loves the seaside.

I like holidays in the mountains, but my wife loves the seaside.

I like holidays in the mountains. Nevertheless, my wife loves the seaside.

Although I like holidays in the mountains, my wife loves the seaside.

I like holidays in the mountains, while my wife loves the seaside.

I like holidays in the mountains, yet my wife loves the seaside.

I like holidays in the mountains. On the other hand, my wife loves the seaside.

Despite my preference of holidays in the mountains, my wife loves the seaside.

I like holidays in the mountains. On the contrary, my wife loves the seaside.

Although I like holidays in the mountains, my wife loves the seaside.

Although I like holidays in the mountains, my wife prefers going to the seaside. (= the reality)

Although my wife loves the seaside, I like holidays in the mountains.

Although my wife loves the seaside, I prefer holidays in the mountains.

We went out although it was raining.

It was raining, however, we went out.

This solution is practical, at the same time, it is also economical.

We are unlikely…, however, we will try it further on.

We are unlikely…, however, we haven't stopped trying.

We are unlikely…, however hard we work.

However fired she got, it's always possible to improve.

Although she got fired, it's always possible to improve.

However good at a language you get, it's always possible to improve.

I never get tired of listening to the 5^th Symphony, however, I also like to listen to the other authors.

I never get tired of listening to the 5^th Symphony, however many times I have listened to it.

I never get tired of listening to the 5^th Symphony, however frequently my roommate complains.