英語「decrease」の動詞活用・時制一覧

英語の動詞「decrease」の活用形と時制を一覧で紹介します。

「decrease」の活用形

「decrease」の活用形は以下の通りです。

原形｜decrease
三単現｜decreases
過去形｜decreased
過去分詞｜decreased
現在分詞｜decreasing

「decrease」の意味と使い方とは
「decrease」は「減少する」「減らす」という意味の動詞、または「減少」「低下」という意味の名詞として使われます。動詞としては、自動詞で「～が減少する」（例：The population decreased. 人口が減少した。）他動詞で「～を減少させる」（例：We need to decrease costs. コストを削減する必要がある。）のように使います。名詞としては、「減少の程度」を表すことが多く、「a decrease in sales」（売上の減少）のように使われます。類義語にはreduce, diminishなどがありますが、decreaseは一般的な減少を表すのに対し、reduceは意図的な削減、diminishは徐々に小さくなるニュアンスがあります。

「decrease」の時制一覧

「decrease」の時制は以下の通りです。

現在形
I decrease
You decrease
He/She/It decreases
We decrease
They decrease

過去形
I decreased
You decreased
He/She/It decreased
We decreased
They decreased

現在完了形
I have decreased
You have decreased
He/She/It has decreased
We have decreased
They have decreased

現在進行形
I am decreasing
You are decreasing
He/She/It is decreasing
We are decreasing
They are decreasing

未来形
I will decrease
You will decrease
He/She/It will decrease
We will decrease
They will decrease

過去進行形
I was decreasing
You were decreasing
He/She/It was decreasing
We were decreasing
They were decreasing

未来進行形
I will be decreasing
You will be decreasing
He/She/It will be decreasing
We will be decreasing
They will be decreasing

過去完了形
I had decreased
You had decreased
He/She/It had decreased
We had decreased
They had decreased

未来完了形
I will have decreased
You will have decreased
He/She/It will have decreased
We will have decreased
They will have decreased

現在完了進行形
I have been decreasing
You have been decreasing
He/She/It has been decreasing
We have been decreasing
They have been decreasing

過去完了進行形
I had been decreasing
You had been decreasing
He/She/It had been decreasing
We had been decreasing
They had been decreasing

未来完了進行形
I will have been decreasing
You will have been decreasing
He/She/It will have been decreasing
We will have been decreasing
They will have been decreasing

このページは英語の動詞「decrease」の活用形と時制を一覧で紹介しています。