Sentence Structure and Punctuation


Basic English Sentence Structures

S – V
S – V – O
S – V – IO – DO
Jack is sleeping.
Jack ate an apple.
Jack gave Jill a ring.
S – LV – Adj.
S – LV – Adv
S – LV – Noun
Jack is sick.
Jack is here.
Jack is a doctor.


Combinations: One verb or one subject (no comma)

    S V

    S and S V

    S V and V

    S V O and O

    S and S V O and O

    Jack is drinking.

    Jack and Jill are drinking.

    Jack is eating and drinking.

    Jack drinks coffee and tea.

    Jack and Jill drink tea and coffee.



Combinations:
Two subjects, two verbs

Subordination (One idea is stronger.)

    Jack drinks coffee although Jill drinks tea. (without a comma)

    Although Jack drinks coffee, Jill drinks tea. (with a comma)

Coordination (equal ideas, with coordinator: and, but, or, nor, for, so, yet)

    Jack is drinking, and Jill is eating. (A comma [,] is needed here.)

    Jack drinks coffee, but Jill drinks tea. (closest connection between ideas)

Closely related ideas (without coordinator)

    Jack drinks coffee; Jill drinks tea. (A semi-colon [;] is used here.)

    Jack drinks coffee; however, Jill drinks tea. (with a sentence connector)

Separate sentences (strongest break between ideas)

Jack drinks coffee. Jill drinks tea. (Use a period [.] to separate complete sentences.)

Jack drinks coffee. However, Jill drinks tea. (with a sentence connector)
Jack drinks coffee. Jill, however, drinks tea. (variation)

Note:
Do not use subordinators and coordinators to connect ideas in the same sentence:

    Although Jack drinks coffee, but Jill drinks tea.

    Jack drinks coffee, but Jill drinks tea.

    Although Jack drinks coffee, Jill drinks tea.

    (INCORRECT)


    (Okay)

    (Okay)

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