There are also some nouns, which are singular in form but are used as plurals. E.g. cattle, deer, thousand etc. These people are very loving. The cattle are grazing in the field. I have ten thousand rupees.
Some nouns have two forms in their plurals form and each form conveys a different meaning.
E.g. These cloths are very costly. These clothes are very costly. There are some nouns which are always used in their plural form. E.g. riches, billiards, premises, surroundings, thanks, stocks, proceeds, alms, arms, valuables, goods, wages, eatables, measles etc. He gave alms to the beggar.