The president hasn’t decided what to do yet. Maria hasn’t called her parents yet.
John has yet to learn the material.
In other use,yet=but.
I don’t have the money, yet I really need the computer.
Present perfect continous:
John has been working in Washington for three years( not completed yet)
John had gone to the store before he went home.
After john had gone to the store, he went home.
Past perfect continuous: (same as past perfect)
Abdul had been living in new York fro 10 years before he moved to California.
George had been working at the university for 40 years before he retired.
Together with, along with, accompanied by, as well as….. have no effect on the verb.
Words that always take singular verbs/pronouns:
Any(body/one/thing), no(body/one/thing), some(body/one/thing), Each, every(body/one/thing)+ singular verb.
Either/neither are singular if they are not used with or/nor.
None of the players have played that match.
None of the winter game has been broadcasted on tv.
No example is relevant to this case.
No examples are relevant to this case.
Neither/either john nor/or his friends are going to the beach today.
Neither/either john nor/or bill is going to the beach today.
John or George is bringing the car.
Gerunds as subject
Knowing her has made him what he is.
Being cordial is one of his greatest assets