It is essential that "commercial " fishing "has " large shoals of fish of one "species " "within" reach of markets.

It is essential that "commercial " fishing "has " large shoals of fish of one "species " "within" reach of markets. Correct Answer has

Species এর Singular কিংবা Plural রূপ Species ই । তাই এর পূর্বে One থাকলেও Grammatically তা ঠিক আছে । আর Large shoals of fish of one species অর্থ এক প্রজাতির বড় এক ঝাঁক মাছ । কিন্তু বাক্যে Subjunctive verb হিসেবে Essential থাকার কারণে Subject যাই হোক না কেন Verb এর মূল রূপ বসবে । কাজেই Has না বসে Have হবে । এরকম কিছু Subjunctive verb হলোঃ Advise, ask, command, demand, insist, move, order, prefer, propose, recommend, require, request ইত্যাদি । বাক্যের অর্থঃ বাণিজ্যিক উদ্দেশ্যে মাছ ধরার ক্ষেত্রে এটা খুবই গুরুত্বপূর্ণ যে হাতের নাগালেই একই প্রজাতির বড় ঝাঁক মাছ থাকবে । The English subjunctive is a special, relatively rare verb form that expresses something desired or imagined. We use the subjunctive mainly when talking about events that are not certain to happen. For example, we use the subjunctive when talking about events that somebody: wants to happen. I wish it were real. (As this expresses a wish, was becomes were.) It is imperative that the game begin at once. (As this expresses a demand, begins becomes begin.) I propose he work full time.