Started is the past participle; starting is the present participle.
Starting is the present participle of start.
The past participle of "start" is "started."
start
The past participle of start is started.-----------------------------------------------See Related questions below.
I/you/we/they start. He/she/it starts. The present participle is starting.
Participial phrases start with a present participle (ending in -ing) or a past participle (usually ending in -ed, -en, or other irregular forms). These phrases include the participle itself along with any modifiers or objects. For example, in the phrase "running quickly," "running" is the present participle, while in "broken vase," "broken" is the past participle. Participial phrases function as adjectives, providing more information about a noun in the sentence.
Present tense:I/you/we/they start. He/she/it starts. The present participle is starting.Past tense:Started.
Being is the present participle. The past participle is been.
The past participle of do is done. The past participle of have is had.
The present participle is beating. The past participle is beat.
Present participle - winding Past participle - winded
The present participle is "sowing" and the past participle is "sown".