You know how the joke begins: “A guy walks into a bar…” But wait, for you to know the punch line, this has to be past tense. So wouldn’t it be, “A guy walked into a bar…?” It could be. But usually it ...

A suffix is a letter or group of letters that goes on the end of a word and changes its meaning. Adding the suffix -ing to the end of a noun can change it into a verb. Narrator: I've told you, fur ...

We use the present simple tense for things that we do regularly and for facts, habits, truths and permanent situations. We often use time expressions like every day, once a week, on Fridays.