English verb conjugation COULD EXECUTE

Regular verb: execute - executed - executed

Affirmation

Simple form

I could execute
you could execute
she could execute
we could execute
you could execute
they could execute

V-ing form

I could be executing
you could be executing
she could be executing
we could be executing
you could be executing
they could be executing

Perfect

I could have executed
you could have executed
she could have executed
we could have executed
you could have executed
they could have executed

V-ing perfect

I could have been executing
you could have been executing
she could have been executing
we could have been executing
you could have been executing
they could have been executing

Negation

Simple form

I couldn't execute
you couldn't execute
she couldn't execute
we couldn't execute
you couldn't execute
they couldn't execute

V-ing form

I couldn't be executing
you couldn't be executing
she couldn't be executing
we couldn't be executing
you couldn't be executing
they couldn't be executing

Perfect

I couldn't have executed
you couldn't have executed
she couldn't have executed
we couldn't have executed
you couldn't have executed
they couldn't have executed

V-ing perfect

I couldn't have been executing
you couldn't have been executing
she couldn't have been executing
we couldn't have been executing
you couldn't have been executing
they couldn't have been executing

Interrogative form

Simple form

could I execute?
could you execute?
could she execute?
could we execute?
could you execute?
could they execute?

V-ing form

could I be executing?
could you be executing?
could she be executing?
could we be executing?
could you be executing?
could they be executing?

Perfect

could I have executed?
could you have executed?
could she have executed?
could we have executed?
could you have executed?
could they have executed?

V-ing perfect

could I have been executing?
could you have been executing?
could she have been executing?
could we have been executing?
could you have been executing?
could they have been executing?

Interro-negative form

Simple form

couldn't I execute?
couldn't you execute?
couldn't she execute?
couldn't we execute?
couldn't you execute?
couldn't they execute?

V-ing form

couldn't I be executing?
couldn't you be executing?
couldn't she be executing?
couldn't we be executing?
couldn't you be executing?
couldn't they be executing?

Perfect

couldn't I have executed?
couldn't you have executed?
couldn't she have executed?
couldn't we have executed?
couldn't you have executed?
couldn't they have executed?

V-ing perfect

couldn't I have been executing?
couldn't you have been executing?
couldn't she have been executing?
couldn't we have been executing?
couldn't you have been executing?
couldn't they have been executing?

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