present tense to be 的意思是什么?

present tense to be 的意思是什么? present tense to be什么意思? Simple present tense of the verb "to be" 只有verb to be 是present simple tense present countinuous tense是什么时态? simple present tense和present continuous tense各是什么时态? Simple present tense of the verb :to be"这里to be 为什么要加to The present tense of asked这道题的答案是什么 manure和enjoy的simple present tense是什么? Change the sentences into present continuous tense.的翻译是什么? present continuous tense 跟present perfect continuous tense的混 the present perfect tense的中文