Necessary: needed for a purpose

The idea

Use necessary for this lock, necessary to confirm or the necessary information. The word can appear after be or before a noun.

Examples

• A key is necessary for this lock.
• It is necessary to confirm the booking.
• The team gathered the necessary information.
• Is another meeting necessary?
• A map may be necessary for this route.
• They made the necessary changes to the plan.

Watch out

A necessary thing is needed for a result; that fact alone does not say whether it is sufficient on its own.

Try it yourself

1. Choose the preposition before the purpose. A key is necessary ___ this lock. (for / from)

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   for

   For introduces the lock or purpose.

2. Choose the form naming the needed action. It is necessary ___ the booking. (to confirm / confirming)

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   to confirm

   To confirm names the necessary action.

3. Choose what necessity alone establishes about sufficiency. A key is necessary to open this lock. Is the key alone sufficient? (not established / certainly yes)

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   not established

   Necessary alone does not say the item is sufficient.

Use it today

Describe something necessary for a task and name the task.