What zullen (to 'will') and kunnen (to be able, can) have in common is that they share the same irregular vowel change in the 1st and 3rd person of the present tense.
Zullen is the auxiliary verb we use for the future tense.
Zullen (will)
Simple present:
| ik
| zal
| we
| zullen
|
| je
| zal/zult*
| jullie
| zullen
|
| hij
| zal
| ze
| zullen
|
Simple past:
| ik
| zou
| we
| zouden
|
| je
| zou
| jullie
| zouden
|
| hij
| zou
| ze
| zouden
|
Past participle: gezuld**
(*) Je zult and je zal are both correct.
(**) You will rarely come across the past participle 'gezuld'. Zullen is used as an auxiliary verb for the future tense. This means it always precedes (supports) another verb. When a past participle acts as an auxiliary for another verb, it turns into an infinitive.
Note the similarities between zullen and kunnen:
Kunnen (can)
Simple present:
| ik
| kan
| we
| kunnen
|
| je
| kan/kunt*
| jullie
| kunnen
|
| hij
| kan
| ze
| kunnen
|
Simple past:
| ik
| kon
| we
| konden
|
| je
| kon
| jullie
| konden
|
| hij
| kon
| ze
| konden
|
Past participle: gekund
(*) Je kunt and je kan are both correct.
Note that the examples above give you the unstressed personal pronouns. Some pronouns change when they are stressed in a phrase: je/jij, we/wij, ze/zij (both singular and plural).
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