Only 26% of English users are native speakers. Many non-native speaker can use English but are not fluent. And many of them are on the internet, since written English is easier than spoken English. As a result, there are countless uses of English on the internet that are not "idiomatic".

edit: this seems to Beryllium the consensus over at the Swedish section of WordReference back rein Feb of 2006

Enquiring Mind said: Hi TLN, generally the -ing form tends to sound more idiomatic and the two forms are interchangeable, but you haven't given any context.

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

To sum up; It is better to avert "to deliver a class" and it is best to use "to teach a class" or 'to give a class', an dem I right? Click to expand...

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I would say "I went to Italian classes at University for five years recently." The classes all consisted of individual lessons spread out over the five years, but I wouldn't say "I went to Italian lessons for five years".

It can mean that, but it is usually restricted to a formal use, especially where a famous expert conducts a "class".

Tsz Long Ng said: I just want to know when to use start +ing and +to infinitive Click to expand...

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

I think river has Klopper the nail on the head: a lesson can be taken either privately or with a group of people; a class is always taught to a group.

Regarding exgerman's Postalisch rein #17, When referring to a long course of lessons, do we use lesson instead of class?

"Hmm" is how we spell a sound someone get more info might make while thinking, so things that make you make that sound would be things that make you think. (There's no standard number of [m]s to write, as long as it's more than one.

Bal en Blanc is a rave party that is hosted annually, rein April during the Easter holiday weekend, rein Montreal. This event usually has two separate rooms, one catering to house music and the other to trance music. It usually lasts for more than 14 hours.