ENGLISH GRAMMAR NOTES FOR THIS LESSON
In 99.9% of cases, the 3rd person singular (he / she / it) adds an ‘s’ to the verb ending as in “She needs help.” “The telephone rings.” (The exception is the very rare subjunctive and I won’t go there…)
All the other regular verb forms look like the infinitive: to need; to ring.
I need, they ring, we come etc.
Even the irregular verb “to be” has an ‘s’ in the 3rd person singular: he is, she is, it is.
What’s up? = what is up?
It means “What is the matter?”
“Could” belongs to the irregular verb form “can” (to be able). It is in the Conditional.
“Come over” is a phrasal verb. It is used like the verb “to come”. It generally refers to going to someone’s house.