Investment Trust

Internal Trade

Infrastructure Transport

Industrial Tools 

Information Technology 

Selling raw materials to manufacturers

Transporting goods in bulk

Selling goods directly to consumers 

Advertising services on social media

Designing packaging for wholesalers 

someone who evaluates product quality 

someone who delivers goods to stores

someone who buys goods or services

someone who designs advertising campaigns 

someone who promotes a product online

A business run by a government organization

A company with shares traded publicly on the stock market.

A business that operates under a franchise model

A company managed and largely owned by members of the same family 

A multinational corporation with various subsidiaries

Weakening the system strengthens errors

We weakened our financial structure to strengthen our competitors

We are weakening products to strengthen budgets

The manager strengthened employee morale while weakening unnecessary processes 

Because the sentence refers to a habit in the distant past that is no longer relevant.

Because it describes a recent, temporary change in routine that may still be happening.

Because it emphasizes the completion of reading multiple books.

Because the sentence emphasizes the ongoing nature of the action and its duration up to now.

Because the person just put on the sweater a few minutes ago and will probably change soon.

Because the sweater was worn once in the past, and the action is fully completed.

You can talk to her.

You have to talk to her.

You could talk to her.

You should talk to her.

You must talk to her.

You must leave early.

You might leave early.

You can leave early.

You may leave early.

has been studying 

studied

was studying 

has studying 

has studied