Questions & Answers about صديقي لا يزال في المكتب، وسوف يعود الى البيت بعد ساعة.
In the present tense, Arabic usually does not use a separate word for is / am / are.
So instead of saying something like My friend is in the office, Arabic simply says:
- صديقي في المكتب = My friend is in the office
In your sentence, the first clause is a little richer:
- صديقي لا يزال في المكتب
This means My friend is still in the office.
Here, لا يزال gives the idea of still / continues to be, so you do not need a separate present-tense is.
لا يزال means still or continues to be.
So:
- لا يزال في المكتب = he is still in the office
A helpful way to think of it is:
- يزال comes from a verb related to ceasing/disappearing
- لا يزال literally gives the sense of has not ceased
- idiomatically, it means still or is still
This is a very common MSA expression.
Examples:
- لا يزال نائمًا = He is still asleep
- لا تزال المدرسة مغلقة = The school is still closed