You have no time to do it.
'Cleaning' in an uncountable noun, so you use the pronoun 'it'.
Student or Learner
Hello! i know its very simple but kinda confused... shall i say...
i have a lot of cleaning to do but I have no time
~ to do it?
~to do them?
which one is right? IT or THEM?
To sum up:
it =Singular countable nouns (animal, chair....)
it =uncountable nouns (there is no singular/plural as they're uncountable already) example cleaning, money, time
They / them = Plural countable nouns (animals, chairs....)
These (they /them)
Those (they / them)
I hope this helps