We can talk about something or argue about something, but we can’t discuss about something.

We use to be used to + gerund/noun to talk about something that we are accustomed to. We often use the expression to talk about whether something is a problem.

We always use the gerund form of the verb after a preposition. In the expression look forward to, the word to is a preposition and not part of an infinitive ver

we don’t normally use much with non-count nouns in positive statements. Instead, we use a lot of.

f we use stop + gerund, it means the gerund activity stops. If we use stop + infinitive, it means the infinitive activity starts.

A compound adjective is when two or more words join to modify the same noun. If a compound adjective has a noun, the noun should be singular.

News (i.e. information about current events) is a singular noun and ends in an ‘s.’

Explain something to someone

If we mention an exact number, we don’t add an ‘s’ after hundred, thousand, million, or billion.

must ( used to draw a conclusion about the past)

did;We use the first conditional to communicate that a condition is possible. We use the second conditional to communicate that something is impossible, unlikel

We use due to and because of followed by a noun or a gerund. We cannot use due to and because of followed by a subject + verb.