Present perfect, Present perfect continuous, Past simple

Our friend ........... his phone one week ago.

• bought
• buy
• has bought
• was buying

Tags

CCSS.L.6.4A

CCSS.L.6.6

.........you ever eaten sweet potato?

• are
• did
• have

we............go to school last Friday.

• aren't
• haven't
• didn't

Tags

CCSS.L.6.4A

CCSS.L.6.6

We use Present Perfect for an action that happened at an unstated time in the past

• Yes
• No

In Present Perfect the time when the past action occured is important.

• Yes
• No

We use Present Perfect to talk about actions that started in the past and ...

• ... continue up to the present.
• ...finished in the past.

We use Present Perfect Simple and Continuous to talk about recently completed actions.

• Yes

• No

When using Present Perfect, we don't use the time expressions:

• for, since, 
• just, already, yet, always, so far
• lately, recently, ever, never, 
• last week, two days ago, in 1990, last summer

We use Present Perfect Continuous to put importance on the duration of an action which started in the past and continues up to the present.

• Yes

• No

We use Present Perfect Continuous for an action which started in the past and lasted for some time; it may still be continuing or has finished already, but the result is visible in the present.

• Yes
• No