Question

Me ajudem, eu sou péssimo em inglês

write the negative and interrogative form the present perfect

1) Afirmativa: i have worked here since 2010
Negativa : ???
Interrogativa:???

2) Afirmativa: she has been in sao paulo recently
Negativa: ??
Interrogativa:??

3) Afirmativa: they have studied lately
Negativa:??
Interrogativa:??

4) Afirmativa: My Friend has traveled to bahia recently
Negativa:??
Interrogativa:??

Answer 1

1) Afirmativa : i have worked here since 2010
Interrogativa :  Have i worked here since 2010?
Negativa : i don't have worked here since 2010

2) Afirmativa: she has been in sao paulo recently
Negativa: she not has been in sao paulo recently
Interrogativa: Has she been in sao paulo recently?

3)  Afirmativa: they have studied lately
Negativa: they not have studied lately
Interrogativa: Have they studied lately?

4) Afirmativa: My Friend has traveled to bahia recently
Negativa: My friend not  has traveled to bahia recently
Interrogativa: Friend my has traveled to bahia recently?

Espero ter ajudado ;) 

Answer 2

1)negativa i haven't worked here since 2010
interrogativa have you worked here since 2010?

2)negativa:she hasn't been in São Paulo recenty
interrogativa:has she been in São Paulo recently?

3)negativa:they haven't studied lately
interrogativa:have they studied lately?

4)Negativa:My friend hasn't traveled to bahia recently
Interrogativa:has your friend traveled to Bahia recently?

Easy peasy kk