I can not go outside.

I'd like some beer.

About 3 bottles of Heineken.

Because I can not go outside due to the corona virus and because I am stressed.

コロナウイルスのせいで外に出られない、ストレスがたまってるから。

I want to drink it alone.

一人で飲みたいです。

Shall we go to the Japanese Izakaya and drink beer tonight?

今夜は居酒屋に行ってビールを飲もうかな？

Let's just walk for 5 minutes.

５分ほど歩きましょう。

How about the use of May I?

May Iの使用はどうですか？

Shall I? - offers

Shall we? - suggestions

May I? - asking for permission

Actually, I want to go outside but Coronavirus and I cannot go outside.