The difference between the base form, past tense, and present participle form of a verb can be summarized as follows:

Base Form: This is the simplest form of the verb, used in the present tense and with modal verbs. For example, “to walk.”

Past Tense: This form indicates that an action was completed in the past. It’s often created by adding “-ed” to regular verbs (e.g., “walked”). Irregular verbs have unique past tense forms (e.g., “went” for “go”).

Present Participle: This form is used for continuous verb tenses and ends in “-ing.” For example, “walking.” It can also function as an adjective (e.g., “a walking man”).