I have got a lot on at the moment.

Idiom: to have a lot on

Means: to be very busy, to have lots to do

Use: to refer busy periods, parts of the day or month, etc

Circumstances: To indicate that someone is busy at this time

Note: The subject is nearly always a person or group of people, often used with ‘at the moment.’   A negative form is possible and ‘not much’ can be used: ‘I haven’t got much/a lot on at the moment’

Some examples:

I’m sorry, I can’t come on Tuesday. I’ve got a lot on that day. How about Wednesday?

James hasn’t got much on at the moment. He is waiting for the new project to start.

Your turn:

Think about some people you know:

(name of person) is has got a lot on. He’s (what – verb)+(when)
Think of another four examples.

When someone says he/she has a lot on, be patient with them!
I haven’t got much on at the moment. July is always a quiet time for me.