P.S - My brother has played lego.
P.C - My brother is playing lego.
Past S - My brother played lego.
Past Cont - My brother was playing lego.
Present Perf - My brother has played lego.
P.S - Pupils have written letters.
P.C - Pupils are writing letters.
Past S - Pupils wrote letters.
Past Cont - Pupils were writing letters.
Present Perf - Pupils have written letters.
P.S - My brother has played lego.
P.C - My brother is playing lego.
Past S - My brother played lego.
Past Cont - My brother was playing lego.
Present Perf - My brother has played lego.
P.S - Pupils have written letters.
P.C - Pupils are writing letters.
Past S - Pupils wrote letters.
Past Cont - Pupils were writing letters.
Present Perf - Pupils have written letters.