Как будет слово not be able to в правильной глагольной форме?

Настоящее i am not  able to you (we, they)  aren't able to he (she, it) i sn't able to прошедшее i (he, she, it) wasn't able to you (we, they) weren't able to будущее i (we) shan't be able to he (she, it, they, you) won't be  able to  

Jules gabriel verne   (8 february 1828 – 24 march 1905)  was a french geographist and novelist, famous writer of adventoures literature, one of the founders of the genre of science fiction. according to the unesco statistics his books    rank second   in their popularity among translators among the world.verne was a son of an  attorney, studied in paris, but the love to literature has lad him to another way. in 1850 his play  the broken straws was warmly    warmly welcomed  at the  théâtre historique. during the years of 1852-1854 verne was working as a secretary of the director of  théâtre lyrique, then worked on the exchange, without stopping writing comedies,  librettos, stories.  on 9 march 1886, verne was shot by his nephew in  his left leg. the travelling was now out of question.  shortly before his death, vern went blind,  but still continued to dictate books.  the writer passed away on march 24, 1905, from diabetes. after his death, there remained a    filing cabinet  containing over 20,000 notebooks with information from all areas of human knowledge. summary. professor of mineralogy otto lidenbrock finds an encrypted manuscript in one ancient book. his nephew axel helps to read a message from the past, the author of which is the mysterious alchemist arne saknussem. he claims that it is possible to reach the center of the earth through the crater of the icelandic volcano snayfelds. the professor, his nephew axel and the hired hans in iceland go to the bowels of the earth, not suspecting what adventures await them. he claims that it is possible to reach the center of the earth through the crater of the icelandic volcano snayfelds. the professor, his nephew axel and hans, who was hired in iceland went to the bowels of the earth, not suspecting what adventures are waiting for them.deep beneath the ground, they discover living prehistoric animals, an ancient human being, natural disasters and, what is the most important, a huge underground sea.  however, the characters can not reach the center of the earth, so they return back through the crater of the stromboli volcano, as a result of crossing the whole europe under the ground. the plot captures attention from the first pages of the book. everything happens so quickly and rapidly. in the blink of an eye, you start travellinf with the  characters to the center of the earth. from the book you will learn a lot of interesting things. for example, how volcanoes are  appearing.