Question

singular
----
i do,
you do,
he/she/it does,

plural
-------
we do
you do
they do

that is present tense
what is the present participle

Answer 1

The present participle of do is DOING.

Answer 2

so it will be i am doing
you are doing, he/she/it is doing, we are doing, you are doing, they are doing.

Answer 3

Right.

Answer 4

thank you

Answer 5

so for eat it will be i am eating
fall=i am falling

Answer 6

Right.

And you're welcome.