Der Plan ist machbar.

The plan is feasible.

Breakdown of Der Plan ist machbar.

• sein: to be
• der Plan: the plan
• machbar: manageable

Questions & Answers about Der Plan ist machbar.

Why is it der Plan and not die Plan or das Plan?

In German, every noun has a grammatical gender that you simply have to learn with the noun.

Plan is masculine in German, so it takes the masculine definite article der in the nominative singular:

• der Plan – the plan (masculine, singular)
• die Pläne – the plans (plural)

There is no logical reason why it’s der instead of die or das; it’s just part of the word’s dictionary entry:

• der Plan, die Pläne

Why isn’t machbar inflected here (no -e, -en, etc.)?

Machbar is a predicate adjective here, used after the verb sein (ist).

German adjectives are:

• inflected (get endings) when they come directly before a noun:
  
  • ein machbarer Plan – a feasible plan
  • der machbare Plan – the feasible plan
• uninflected (no endings) when used after sein, werden, bleiben, etc.:
  
  • Der Plan ist machbar. – The plan is feasible.
  • Der Plan bleibt machbar. – The plan remains feasible.

So after ist, the correct form is the bare adjective machbar with no ending.