Improprieties in the use of the gerund when the gerund accompanies another verb in verbal forms composed, presents no difficulties: he was eating, they came running, he was walking. But when used only, it presents many difficulties. They are incorrect the following uses of the gerund: 1. the gerund which expresses permanent action i.e.: an old man being fortune-teller told Me. Is incorrect the gerund which expresses permanent action, because it must express action transient, momentary and fleeting, temporary; for example: finishing the work, spilled you paint. She walked thinking about what happened. This gerund is corrected by switching that or which + verb in a personal way.

Examples: an elder being fortune teller has told Me so. that is it, mastering several languages, came to the University. which dominated the work several people bearing the same surname did.that lead 2. gerund which expresses ambiguity e.g.: saw your aunt coming out of the gym. This gerund expresses ambiguity, since unable to determine accurately if it was your aunt or if we were those who were leaving the gym.

In this sentence, for example, there is no ambiguity: we saw a child eating the bread. To correct these errors of ambiguity, must be written otherwise sentences, depending on what you want to say: we saw your aunt coming out of the gym. which came out when he was leaving while leaving when we went in the gym, we saw your aunt. I saw several children playing in the yard., which were playing while I played when I was playing in the yard, I found your father walking in the field.which walked while I walked on the field, when I walked on the field, 3. the gerund of later, effect or consequence e.g.: became ill on Monday, entering the hospital on Tuesday. The gerund which expresses further action, effect or consequence with regard to the action of the main verb is incorrect.