Do you want to add ing to the verbs in the topic?

Verbs are converted into nouns: singing, dancing, running and swimming. Analysis for you: singing is singing, and adding ing is singing. In the same way, the prototype focuses on "action" and the ing form focuses on "name" (please understand it from the Chinese point of view, singing and running. Note that after adding ing here, you can only be a noun. For example, add +n after prepositions (such as typical: for, to, on, in, out, of, etc. If it follows a verb, it is converted into a noun. 2. Word segmentation forms: see, listen, sing, run and swim. Analysis: look means look, with ing added. Different from the explanation of 1 above, the meaning of 2 remains the same, but it focuses on the action, and the action is in progress. For example, he is reading, watching TV and swimming. (Note that if you focus on describing the occurrence of actions, Do (verb) must Be preceded by a Be (copula: is am are was were), but in the explanation 1, there is no "be" when the verb is converted into a noun. ) Again, the weight is describing the action, and there must be translation (positive, positive, present, etc. ) Chinese. When you do a problem, you should look at the problem first, mainly at the sentences to describe it.