Present Continuous = S. + is, am, are + being + Verb 3 + by…..
Present Perfect = S. + has, have + been + Verb 3 + by…..
Present Per. Conti = S. + has, have + been + being + Verb 3 + by…..
Past Simple = S. + was, were + Verb 3 + by…..
Past Continuous = S. + was, were + being + Verb 3 + by….. อ่านต่อ>>