1
I think the worst part of the exam it’s speaking.
I think the worst part of the exam is speaking.
Do not add it when the sentence already has a subject. In this sentence, the worst part of the exam is the subject of is.
Check our grammar lesson on how to avoid double subjects in English.
2
I love their music. Is fantastic!
I love their music. It is fantastic!
In English, a verb normally needs a subject. Use it to refer back to a singular thing or idea: ‘Their music is fantastic.’ ‘It is fantastic.’
We do not normally use a subject when we give orders or instructions: ‘Sit down.’ ‘Open the door.’
3
I like here.
I like it here.
Use it before here or there after verbs such as like, love and hate: ‘I love it here.’ ‘She hates it there.’
4
The house was beautiful. It was a nice garden and a big swimming pool.
The house was beautiful. There was a nice garden and a big swimming pool.
Use there + be to introduce something for the first time or say that it exists: ‘There was a nice garden.’
Use it + be to continue talking about something already mentioned: ‘The house was beautiful. It was also very big.’
5
I find difficult to understand the teacher.
I find it difficult to understand the teacher.
Use find it + adjective + to-infinitive: ‘I find it difficult to understand the teacher.’
We use similar structures with verbs such as think, consider and make: ‘They consider it rude to refuse a present.’ ‘He made it clear that he didn’t want to come.’