Grammar
It is used to separate verbs in a sentence
Infinitive
It is the person that directs an orchestra
Conductor
It is a modal verb used to express prohibitions
Must/mustn´t
To go in past.
Went
To begin to do
Set about
It expresses that something is not necessary
Dont have to, Dont need to
It is caused by cutting down trees
Deforestation
It is used to express the exact meaning of what someone said.
Reported speech
Past participle for the verb To lose
Lost
Carry on means...
To continue doing sth / continue
In reported questions we use if when...
We are reporting a yes/no question
School subject based on calculations
Math/Mathematics.
What would be the passive voice for "Factories contaminates the air".
The air is being contaminated by factories.
Past participle of keeping
Kept
It is used to express that a person has received the control.
To take over.
Say in reported imperative Eat your lunch
She/he asked/commaned/ordered me to eat my lunch.
It is the paper that contains all your credit card history and the amount of money you have to pay for the month.
Credit card bill.
It is commonly use to express hypothetical ideas contrary to the present
Conditional type 2
Cost in past
Cost
I ________ some money while I was doing the laundry.
came across
Use this ideas to create a condional type 3 idea "You went to the party, you had problems in the party".
If I hadn´t gone to the party, I wouldn´t have had problems there.
It is a disaster caused by the lack of food in a country
Famine
Change to active voice "Lakes and rivers have been being polluted by industrial wasted"
Industrial wasted has been polluting Lakes and Rivers
Read in past participle
Read
It expresses the ability to invent or create something
Make up