Just

[jack]

Are these correct? What do they mean?

1. Just place it in the bag. (What is the subject and verb?)
2. Just places it in the bag.
3. Just placed it in the bag.

 

[Casiopea]

Are these correct? What do they mean?

1. Just place it in the bag. (What is the subject and verb?)
2. Just places it in the bag.
3. Just placed it in the bag.

They're all imperatives. In such structures, the subject "You" is omitted and the verb never carries tense. 2) 'places' and 3) 'placed' are incorrect.

 

[jack]

"You" is omitted and the verb never carries tense. 2) 'places' and 3) 'placed' are incorrect.

What do you mean by it never carries tense? Do you mean this?
1. He just places it there. ('kill' does not have tense right? -s is just added to it?)
2. He just placed it there. ('place' has tense? What do you mean by verb never carries tense? What is the subject and verb here? Is 'place' and adjective then?)

 

[Casiopea]

What do you mean by it never carries tense? Do you mean this?
1. He just places it there.
('places' does not have tense right? -s is just added to it?)

2. He just placed it there.
('place' has tense? What do you mean by verb never carries tense? What is the subject and verb here? Is 'place' and adjective then?)

Present Tense marker: He places it there.
Past Tense marker: He placed it there.
No Tense marker: Place it there, please.

The last sentence is in the imperative; it lacks a tense marker. :wink:
Subject "He"; Verb "places, placed, place".