Past perfect is formed with - had + past participle.
Plant is a regular verb so the past participle is planted
I had planted the trees at the back of the section.
Planted is the past tense of plant. Planting is the present participle of plant.
Present participle are always the -ing form of the base verb in this case the base verb is plant
Planted
e.g. I planted a rose bush last weekend
Present perfect is formed with -- have/has + past participle. Has is used when he/she or it is subject or singular noun subjects.The past participle of plant is planted, so present perfect is have planted or has planted.Jack has planted all the trees. (Jack is singular)We have planted all the trees. ( we is plural)
The present tense of planted is:I/You/We/They plant.He/She/It plants.The present participle is planting.
The past participle is planted.
The present participle of "do" is "doing".
The present participle of "get" is "getting."
Being is the present participle. The past participle is been.
Presenting is the present participle of present.
Presenting is the present participle of present.
The present participle of "lead" is "leading."
The present participle of "swear" is "swearing."
The present participle of "put" is "putting."
The present participle of "understand" is "understanding."