1. structure
- framework
- form
- composition
- construction
- fabric
These are all words for the way the different parts of something combine together
or the way that something has been made.
EX:
the structure of the building/​human body
 the social structure of society
the grammatical structures of a language
a salary structure
framework a set of beliefs, ideas or rules that forms the basis of a system or
society:
EX:
The report provides a framework for further research.
form [U] the arrangement of parts in a whole, especially in a work of art or piece
of writing:
EX:
As a photographer, shape and form were more important to him than colour.
composition [U] (rather formal) the different parts or people that combine to form
something; the way in which they combine:
EX:
recent changes in the composition of the workforce
 Patterns
the basic structure/​framework/​form/​composition/​construction/​fabric of something
a simple/​complex structure/​framework/​form
the economic/​political/​social structure/​framework/​composition/​fabric of something
the chemical/​genetic structure/​composition of something
2. begin / start
There is not much difference in meaning between begin and start, though start is
more common in spoken English:
EX:

What time does the concert start/​begin?
She started/​began working here three months ago.
Begin is often used when you are describing a series of events:
EX:
The story begins on the island of Corfu.
Start, but not begin, can also mean ‘to start a journey’, ‘to start something
happening’ or ‘to start a machine working’:
EX:
We’ll need to start at 7.00.
Who do you think started the fire?
The car won’t start.
You can use either an infinitive or a form with -ing after begin and start, with no
difference in meaning:
I didn’t start worrying/​to worry until she was 2 hours late.
After the forms beginning and starting, the -ing form of the verb is not normally
used:
It’s starting/​beginning to rain.