English verb conjugation COULD FERTILISE

Regular verb: fertilise - fertilised - fertilised

Affirmation

Simple form

I could fertilise
you could fertilise
she could fertilise
we could fertilise
you could fertilise
they could fertilise

V-ing form

I could be fertilising
you could be fertilising
she could be fertilising
we could be fertilising
you could be fertilising
they could be fertilising

Perfect

I could have fertilised
you could have fertilised
she could have fertilised
we could have fertilised
you could have fertilised
they could have fertilised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fertilise?
could you fertilise?
could she fertilise?
could we fertilise?
could you fertilise?
could they fertilise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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