To Catalyse

Infinitive: to catalyse
Gerund: catalysing
Past participle: catalysed
Simple past: catalysed


Irregular forms
Auxilliary verb
Spelling change

Indicative

Present
I catalyse I catalyse
you catalyse you catalyse
he/she/it catalyses he/she/it catalyses
we catalyse we catalyse
they catalyse they catalyse
you catalyse you catalyse
I do not catalyse I don't catalyse
you do not catalyse you don't catalyse
he/she/it does not catalyse he/she/it doesn't catalyse
we do not catalyse we don't catalyse
they do not catalyse they don't catalyse
you do not catalyse you don't catalyse
Preterite
I catalysed I catalysed
you catalysed you catalysed
he/she/it catalysed he/she/it catalysed
we catalysed we catalysed
they catalysed they catalysed
you catalysed you catalysed
I did not catalyse I didn't catalyse
you did not catalyse you didn't catalyse
he/she/it did not catalyse he/she/it didn't catalyse
we did not catalyse we didn't catalyse
they did not catalyse they didn't catalyse
you did not catalyse you didn't catalyse
Future
I will catalyse I'll catalyse
you will catalyse you'll catalyse
he/she/it will catalyse he/she/it'll catalyse
we will catalyse we'll catalyse
they will catalyse they'll catalyse
you will catalyse you'll catalyse
I will not catalyse I won't catalyse
you will not catalyse you won't catalyse
he/she/it will not catalyse he/she/it won't catalyse
we will not catalyse we won't catalyse
they will not catalyse they won't catalyse
you will not catalyse you won't catalyse

Perfect

Present
I have catalysed I've catalysed
you have catalysed you've catalysed
he/she/it has catalysed he/she/it's catalysed
we have catalysed we've catalysed
they have catalysed they've catalysed
you have catalysed you've catalysed
I have not catalysed I haven't catalysed
you have not catalysed you haven't catalysed
he/she/it has not catalysed he/she/it hasn't catalysed
we have not catalysed we haven't catalysed
they have not catalysed they haven't catalysed
you have not catalysed you haven't catalysed
Past
I had catalysed I'd catalysed
you had catalysed you'd catalysed
he/she/it had catalysed he/she/it'd catalysed
we had catalysed we'd catalysed
they had catalysed they'd catalysed
you had catalysed you'd catalysed
I had not catalysed I hadn't catalysed
you had not catalysed you hadn't catalysed
he/she/it had not catalysed he/she/it hadn't catalysed
we had not catalysed we hadn't catalysed
they had not catalysed they hadn't catalysed
you had not catalysed you hadn't catalysed
Future
I will have catalysed I'll have catalysed
you will have catalysed you'll have catalysed
he/she/it will have catalysed he/she/it'll have catalysed
we will have catalysed we'll have catalysed
they will have catalysed they'll have catalysed
you will have catalysed you'll have catalysed
I will not have catalysed I won't have catalysed
you will not have catalysed you won't have catalysed
he/she/it will not have catalysed he/she/it won't have catalysed
we will not have catalysed we won't have catalysed
they will not have catalysed they won't have catalysed
you will not have catalysed you won't have catalysed

Continuous

Present
I am catalysing I'm catalysing
you are catalysing you're catalysing
he/she/it is catalysing he/she/it's catalysing
we are catalysing we're catalysing
they are catalysing they're catalysing
you are catalysing you're catalysing
I am not catalysing I'm not catalysing
you are not catalysing you aren't catalysing
he/she/it is not catalysing he/she/it isn't catalysing
we are not catalysing we aren't catalysing
they are not catalysing they aren't catalysing
you are not catalysing you aren't catalysing
Past
I was catalysing I was catalysing
you were catalysing you were catalysing
he/she/it was catalysing he/she/it was catalysing
we were catalysing we were catalysing
they were catalysing they were catalysing
you were catalysing you were catalysing
I was not catalysing I wasn't catalysing
you were not catalysing you weren't catalysing
he/she/it was not catalysing he/she/it wasn't catalysing
we were not catalysing we weren't catalysing
they were not catalysing they weren't catalysing
you were not catalysing you weren't catalysing
Future
I will be catalysing I'll be catalysing
you will be catalysing you'll be catalysing
he/she/it will be catalysing he/she/it'll be catalysing
we will be catalysing we'll be catalysing
they will be catalysing they'll be catalysing
you will be catalysing you'll be catalysing
I will not be catalysing I won't be catalysing
you will not be catalysing you won't be catalysing
he/she/it will not be catalysing he/she/it won't be catalysing
we will not be catalysing we won't be catalysing
they will not be catalysing they won't be catalysing
you will not be catalysing you won't be catalysing

Continuous Perfect

Present
I have been catalysing I've been catalysing
you have been catalysing you've been catalysing
he/she/it has been catalysing he/she/it's been catalysing
we have been catalysing we've been catalysing
they have been catalysing they've been catalysing
you have been catalysing you've been catalysing
I have not been catalysing I haven't been catalysing
you have not been catalysing you haven't been catalysing
he/she/it has not been catalysing he/she/it hasn't been catalysing
we have not been catalysing we haven't been catalysing
they have not been catalysing they haven't been catalysing
you have not been catalysing you haven't been catalysing
Past
I had been catalysing I'd been catalysing
you had been catalysing you'd been catalysing
he/she/it had been catalysing he/she/it'd been catalysing
we had been catalysing we'd been catalysing
they had been catalysing they'd been catalysing
you had been catalysing you'd been catalysing
I had not been catalysing I hadn't been catalysing
you had not been catalysing you hadn't been catalysing
he/she/it had not been catalysing he/she/it hadn't been catalysing
we had not been catalysing we hadn't been catalysing
they had not been catalysing they hadn't been catalysing
you had not been catalysing you hadn't been catalysing
Future
I will have been catalysing I'll have been catalysing
you will have been catalysing you'll have been catalysing
he/she/it will have been catalysing he/she/it'll have been catalysing
we will have been catalysing we'll have been catalysing
they will have been catalysing they'll have been catalysing
you will have been catalysing you'll have been catalysing
I will not have been catalysing I won't have been catalysing
you will not have been catalysing you won't have been catalysing
he/she/it will not have been catalysing he/she/it won't have been catalysing
we will not have been catalysing we won't have been catalysing
they will not have been catalysing they won't have been catalysing
you will not have been catalysing you won't have been catalysing

Conditional

Present
I would catalyse I would catalyse
you would catalyse you would catalyse
he/she/it would catalyse he/she/it would catalyse
we would catalyse we would catalyse
they would catalyse they would catalyse
you would catalyse you would catalyse
I would not catalyse I wouldn't catalyse
you would not catalyse you wouldn't catalyse
he/she/it would not catalyse he/she/it wouldn't catalyse
we would not catalyse we wouldn't catalyse
they would not catalyse they wouldn't catalyse
you would not catalyse you wouldn't catalyse
Perfect
I would have catalysed I would've catalysed
you would have catalysed you would've catalysed
he/she/it would have catalysed he/she/it would've catalysed
we would have catalysed we would've catalysed
they would have catalysed they would've catalysed
you would have catalysed you would've catalysed
I would not have catalysed I wouldn't have catalysed
you would not have catalysed you wouldn't have catalysed
he/she/it would not have catalysed he/she/it wouldn't have catalysed
we would not have catalysed we wouldn't have catalysed
they would not have catalysed they wouldn't have catalysed
you would not have catalysed you wouldn't have catalysed

Imperative

(you) catalyse (you) catalyse
(we) let's catalyse (we) let's catalyse
(you) catalyse (you) catalyse
(you) do not catalyse (you) don't catalyse
(we) let's not catalyse (we) let's not catalyse
(you) do not catalyse (you) don't catalyse