関連ワード:  what is the future tense of study    what is the future form of study    what is the future perfect tense of study    what is the future continuous tense of study    what is the simple future tense of study    what is the future perfect continuous tense of study    what is the future tense of the word study    what is the future perfect continuous tense of the verb to study    what is the future tense of learn    what is future tense and its types