โครงสร้างของ Tenses
Present
Present Simple : S + Verb 1 (ประธานเอกพจน์เติม s) + …
Present Continuous : S + is, am, are + Verb 1 เติม ing + …
Present Perfect : S + have, has + Verb 3 + …
Present Perfect Continuous : S + have, has + been + Verb 1 เติม ing + …
Past
Past Simple : S + Verb 2 (เติม ed บ้าง, ผันบ้าง) + …
Past Continuous : S + was, were + Verb 1 เติม ing
Past Perfect : S + had + Verb 3 + …
Past Perfect Continuous : S + had + been + Verb 1 เติม ing + …
Future
Future Simple : S + will, shall + Verb 1 (ไม่เติมอะไร) + …
Future Continuous : S + will, shall + be + Verb 1 เติม ing + …
Future Perfect : S + will, shall + have + Verb 3 + …
Future Perfect Continuous : S + will, shall + have + been + Verb 1 เติม ing + ...