|might / may||might||might have||I may sing today. |
Yesterday I thought that I might sing.
If I had practiced more, I might have sung better.
|could / can||could||could have||He can live cheaply now. |
Last year, he could not live so cheaply.
He could live here if he wanted to.
If he had sold his car, he could have lived more simply.
|would||would||would have||I would sing tonight if you wanted me to. |
Last week, I expected that I would sing more often.
If I had been paid more, I would have sung more often.
|will / shall||would||They will live with their kids in New York. |
When they arrived, they hoped that the kids would live with them in Hartford.
|should / ought||should have
ought to have
|Sara should sing that folk song. |
She ought to sing it for the family first.
She should have sung it at the party, but she was shy.
|have to / must||had to||Max has to live in the city. |
He must live near his kids.
When he lost his job, he had to live with his parents.
|All modal auxiliaries in these two columns are
followed by the base form of the main verb.
Don't add -ed, -s or -ing:
should live; can sing.
|The auxiliaries in this column are followed by the past participle:
ought to have lived;
would have sung.