Table of contents
Notes on the present perfect
| A present perfect verb always includes: | |
|---|---|
| has (singular) or have (plural) + a past participle | |
| Past participles usually end in -ed: | contributed, resigned, completed |
| but may be irregular: | fallen, grown, made, been, become |
Examples
- couples have contributed
- average household size has fallen
| A present perfect continuous verb includes: |
|---|
| has (singular) or have (plural) + been + an -ing verb |
Examples
- couples have been contributing
- average household size has been falling
| A present perfect passive verb includes: |
|---|
| has (singular) or have (plural) + been + a past participle |
Examples
- the report has been reviewed
- prices have been increased
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