Rumus ; -Simple present tense ; -simple continous tense ; -Simple past tense ; -Simple fiture ;

Simple present tense
(+) S + V1 (es/s)
(-) S + Do/Does + not + V1
(?) Do/Does + S + V1 ?

Simple continuous tense
(+) S + tobe (is, am.are) + V1 (ing)
(-) S + tobe + not + V1(ing)
(?) tobe + S + V1 (ing) ?
Past tense
(+) S + V2
(-) S + did not + V1
(?) Did + S + V1?

Simple future
(+) S + will/shall + V1
(-) S + will/shall + not + V1
(?) will/shall + S + V1 ?

Simple Present: S+V1+O
Present Continuous: S+To Be(is, am, are)+V1ing+O
Present Perfect: S+have/has+V3+O
Present Perfect Continuous: S+have/has+been+V1ing+O

Simple Past: S+V2+O
Past Continuous: S+To Be(was, were)+V1ing+O
Past Perfect: S+had+V3+O
Past Perfect Continuous: S+had+been+V1ing+O

Simple Future: S+shall/will+V1+O
Future Continuous: S+shall/will+be+V1ing+O
Future Perfect: S+shall/will+have+V3+O
Future Perfect Continuous: S+shall/will+have+been+V1ing+O

Note:
shall= I, we
will=you,they,he,she,it
was=I,he,she,it
were=you,they,we
am=I
is=he,she,it
are=you,we,they