Can’t tell when to add is and when not?

You have to know that is, are, and am are all be verbs. If you can't remember them, you can put them in the verb and treat them as verbs. In a sentence, the simplest form is: subject, predicate, object, subject is the he in your sentence, predicate, predicate, is the work in that sentence, which is the predicate verb. A simple sentence can only have one predicate verb. , and you know, work and is are both verbs, so if there is work, there cannot be is. Moreover, in this sentence is works, which is the present simple tense. You cannot add is. If the two must appear together, it is the present continuous tense. You know the present continuous tense, which means he is working in a shop to express the present continuous tense. Use the verb be + verb ING form. Got it?

Hope to adopt