Helping verbs, helping verbs, there are 23! Am, is, are, was and were, being, been, and be, Have, has, had, do, does, did, will, would, shall, and should. There are five more helping verbs: may, might, must, can, could!
Explanation: The translation of the words are pollution- solve- deforestation- trees- people- preserve- exploite- resource- decrease- stop/avoid- solve.
