Indicate.

• Research indicates that trees need water, sunshine, and air.

Effort.

• Tom put a lot of effort into the party.
• Please make an effort to be polite.

Convince.

• His argument didn’t convince everyone.
• The boy convince his father that he could get a good result.

Otherwise.

• You must go now otherwise you will miss your bus.
• Put on your coat, otherwise, you will get cold.

Insist.

• Tom insisted that he was right.
• They insisted that everyone should come to the party.

Relate.

• I don’t understand how the two ideas relate.

Perceive.

• That morning, he perceived a change in tom’s mood.
• Even he’s a boy, he has been perceived as a further good football player.

Concept.

• A new concept in business travel.
• It’s very simple, once you grasp the concept.