The Subjunctive

The subjunctive describes a situation or necessity that results from someone’s desire or a condition in nature, like the weather. The subjunctive is formed as follows:

Introduced by an expression like:

that

subject

Simple form of verb

Rest of sentence

It is necessary

you

wear

warm clothes during winter

It is important

people

use

sunblock lotion at the beach

It is essential

Your father

turn on

headlights for driving in the fog

It is advisable

children

wear

boots and raincoats

It is recommended

roads

be

Salted.

It is better

we

shut

windows and doors during a hurricane.

 

Model sentences:

It is important that your father turn on the lights when driving in the fog. 
                                             (simple form)

It is essential that people shut windows and doors during a hurricane.
                                 (simple form)