How do you change the ing form of a verb?

1, in general, directly + ing; such as: plying;

2, to the unpronounceable e ending (consonant + e ending) words, remove the e + ing; such as: make-making, taste-tasting;

to the vowel + e ending in the word, + ing; such as: see-seeing

3, words ending in the letter ie, change ie to y, +ing; e.g.: lie-lying, tie-tying, die-dying;

4, words ending in consonants, vowels, and consonant letters, double-write the last letter +ing run-running;

If the end is a vowel letter plus a

Expanded Information

When to add ing to verbs:

1. The progressive tense of a verb, which is needed to express an action in progress.

For example: I am reading a book.(I am reading)

I'm coming.(I'm coming)

2. If the verb needs to be in the form of a noun in the sentence constituent, the addition of ing can make it take on the attributes of a noun (called a gerund).

For example: I like swimming.