`31.` aren't eating
`32.` isn't telling
`33.` isn't climbing
`34.` isn't crying
`35.` aren't visiting
`36.` isn't going
`37.` arent asking
`38.` am not opening
`39.` aren't jogging
`40.` aren't having
`41.` is leaving
`42.` Are Cliff and Oliver meeting
`43.` are looking
`44.` is writing
`45.` aren't making
`\text{Present Continuous}`
$\textit{(+) S + am/is/are + Ving + (O).}$
$\textit{(-) S + am not/isn't/aren't + Ving + (O).}$
$\textit{(?) Am/Is/Are + S + Ving + (O).}$
$\text{I + am}$
$\text{She/he/it/...ngôi 3 số ít + is}$
$\text{You/WeThey/....ngôi số nhiều + are}$
